user-manual: Add section "Why bisecting merge commits can be harder ..."

This commit adds a discussion of the challenge of bisecting
merge commits to the user manual.  The original author is
Junio C Hamano <gitster@pobox.com>, who posted the text to
the mailing list <http://marc.info/?l=git&m=119403257315527&w=2>.
His email was adapted for the manual.

The discussion is added to "Rewriting history and maintainig
patch series".  The text added requires good understanding of
merging and rebasing.  Therefore it should not be placed too
early in the manual.  Right after the section on "Problems with
rewriting history", the discussion of bisect gives another reason
for linearizing as much of the history as possible.

The text includes suggestions and fixes by
Ralf Wildenhues <Ralf.Wildenhues@gmx.de> and
Benoit Sigoure <tsuna@lrde.epita.fr>.

Signed-off-by: Steffen Prohaska <prohaska@zib.de>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
1 file changed
tree: 90c079a15ecaf90ab5fe29311ea39110367b43c8
  1. arm/
  2. compat/
  3. contrib/
  4. Documentation/
  5. git-gui/
  6. gitweb/
  7. mozilla-sha1/
  8. perl/
  9. ppc/
  10. t/
  11. templates/
  12. xdiff/
  13. .gitignore
  14. .mailmap
  15. alloc.c
  16. archive-tar.c
  17. archive-zip.c
  18. archive.h
  19. attr.c
  20. attr.h
  21. base85.c
  22. blob.c
  23. blob.h
  24. builtin-add.c
  25. builtin-annotate.c
  26. builtin-apply.c
  27. builtin-archive.c
  28. builtin-blame.c
  29. builtin-branch.c
  30. builtin-bundle.c
  31. builtin-cat-file.c
  32. builtin-check-attr.c
  33. builtin-check-ref-format.c
  34. builtin-checkout-index.c
  35. builtin-commit-tree.c
  36. builtin-config.c
  37. builtin-count-objects.c
  38. builtin-describe.c
  39. builtin-diff-files.c
  40. builtin-diff-index.c
  41. builtin-diff-tree.c
  42. builtin-diff.c
  43. builtin-fetch--tool.c
  44. builtin-fmt-merge-msg.c
  45. builtin-for-each-ref.c
  46. builtin-fsck.c
  47. builtin-gc.c
  48. builtin-grep.c
  49. builtin-init-db.c
  50. builtin-log.c
  51. builtin-ls-files.c
  52. builtin-ls-tree.c
  53. builtin-mailinfo.c
  54. builtin-mailsplit.c
  55. builtin-merge-base.c
  56. builtin-merge-file.c
  57. builtin-mv.c
  58. builtin-name-rev.c
  59. builtin-pack-objects.c
  60. builtin-pack-refs.c
  61. builtin-prune-packed.c
  62. builtin-prune.c
  63. builtin-push.c
  64. builtin-read-tree.c
  65. builtin-reflog.c
  66. builtin-rerere.c
  67. builtin-rev-list.c
  68. builtin-rev-parse.c
  69. builtin-revert.c
  70. builtin-rm.c
  71. builtin-runstatus.c
  72. builtin-shortlog.c
  73. builtin-show-branch.c
  74. builtin-show-ref.c
  75. builtin-stripspace.c
  76. builtin-symbolic-ref.c
  77. builtin-tag.c
  78. builtin-tar-tree.c
  79. builtin-unpack-objects.c
  80. builtin-update-index.c
  81. builtin-update-ref.c
  82. builtin-upload-archive.c
  83. builtin-verify-pack.c
  84. builtin-verify-tag.c
  85. builtin-write-tree.c
  86. builtin.h
  87. cache-tree.c
  88. cache-tree.h
  89. cache.h
  90. check-builtins.sh
  91. check-racy.c
  92. color.c
  93. color.h
  94. combine-diff.c
  95. commit.c
  96. commit.h
  97. config.c
  98. config.mak.in
  99. configure.ac
  100. connect.c
  101. convert-objects.c
  102. convert.c
  103. copy.c
  104. COPYING
  105. csum-file.c
  106. csum-file.h
  107. ctype.c
  108. daemon.c
  109. date.c
  110. decorate.c
  111. decorate.h
  112. delta.h
  113. diff-delta.c
  114. diff-lib.c
  115. diff.c
  116. diff.h
  117. diffcore-break.c
  118. diffcore-delta.c
  119. diffcore-order.c
  120. diffcore-pickaxe.c
  121. diffcore-rename.c
  122. diffcore.h
  123. dir.c
  124. dir.h
  125. dump-cache-tree.c
  126. entry.c
  127. environment.c
  128. exec_cmd.c
  129. exec_cmd.h
  130. fast-import.c
  131. fetch-pack.c
  132. fetch.c
  133. fetch.h
  134. fixup-builtins
  135. generate-cmdlist.sh
  136. git-add--interactive.perl
  137. git-am.sh
  138. git-archimport.perl
  139. git-bisect.sh
  140. git-checkout.sh
  141. git-clean.sh
  142. git-clone.sh
  143. git-commit.sh
  144. git-compat-util.h
  145. git-cvsexportcommit.perl
  146. git-cvsimport.perl
  147. git-cvsserver.perl
  148. git-fetch.sh
  149. git-filter-branch.sh
  150. git-instaweb.sh
  151. git-lost-found.sh
  152. git-ls-remote.sh
  153. git-merge-octopus.sh
  154. git-merge-one-file.sh
  155. git-merge-ours.sh
  156. git-merge-resolve.sh
  157. git-merge-stupid.sh
  158. git-merge.sh
  159. git-mergetool.sh
  160. git-parse-remote.sh
  161. git-pull.sh
  162. git-quiltimport.sh
  163. git-rebase--interactive.sh
  164. git-rebase.sh
  165. git-relink.perl
  166. git-remote.perl
  167. git-repack.sh
  168. git-request-pull.sh
  169. git-reset.sh
  170. git-send-email.perl
  171. git-sh-setup.sh
  172. git-stash.sh
  173. git-submodule.sh
  174. git-svn.perl
  175. git-svnimport.perl
  176. GIT-VERSION-GEN
  177. git.c
  178. git.spec.in
  179. gitk
  180. grep.c
  181. grep.h
  182. hash-object.c
  183. help.c
  184. http-fetch.c
  185. http-push.c
  186. http.c
  187. http.h
  188. ident.c
  189. imap-send.c
  190. index-pack.c
  191. INSTALL
  192. interpolate.c
  193. interpolate.h
  194. list-objects.c
  195. list-objects.h
  196. local-fetch.c
  197. lockfile.c
  198. log-tree.c
  199. log-tree.h
  200. mailmap.c
  201. mailmap.h
  202. Makefile
  203. match-trees.c
  204. merge-file.c
  205. merge-index.c
  206. merge-recursive.c
  207. merge-tree.c
  208. mktag.c
  209. mktree.c
  210. object-refs.c
  211. object.c
  212. object.h
  213. pack-check.c
  214. pack-redundant.c
  215. pack-write.c
  216. pack.h
  217. pager.c
  218. patch-delta.c
  219. patch-id.c
  220. patch-ids.c
  221. patch-ids.h
  222. path-list.c
  223. path-list.h
  224. path.c
  225. peek-remote.c
  226. pkt-line.c
  227. pkt-line.h
  228. progress.c
  229. progress.h
  230. quote.c
  231. quote.h
  232. reachable.c
  233. reachable.h
  234. read-cache.c
  235. README
  236. receive-pack.c
  237. reflog-walk.c
  238. reflog-walk.h
  239. refs.c
  240. refs.h
  241. remote.c
  242. remote.h
  243. revision.c
  244. revision.h
  245. rsh.c
  246. rsh.h
  247. run-command.c
  248. run-command.h
  249. send-pack.c
  250. server-info.c
  251. setup.c
  252. sha1_file.c
  253. sha1_name.c
  254. shallow.c
  255. shell.c
  256. show-index.c
  257. sideband.c
  258. sideband.h
  259. ssh-fetch.c
  260. ssh-pull.c
  261. ssh-push.c
  262. ssh-upload.c
  263. strbuf.c
  264. strbuf.h
  265. symlinks.c
  266. tag.c
  267. tag.h
  268. tar.h
  269. test-absolute-path.c
  270. test-chmtime.c
  271. test-date.c
  272. test-delta.c
  273. test-genrandom.c
  274. test-match-trees.c
  275. test-sha1.c
  276. test-sha1.sh
  277. trace.c
  278. tree-diff.c
  279. tree-walk.c
  280. tree-walk.h
  281. tree.c
  282. tree.h
  283. unpack-file.c
  284. unpack-trees.c
  285. unpack-trees.h
  286. update-server-info.c
  287. upload-pack.c
  288. usage.c
  289. utf8.c
  290. utf8.h
  291. var.c
  292. write_or_die.c
  293. wt-status.c
  294. wt-status.h
  295. xdiff-interface.c
  296. xdiff-interface.h