Rename path_list to string_list

The name path_list was correct for the first usage of that data structure,
but it really is a general-purpose string list.

$ perl -i -pe 's/path-list/string-list/g' $(git grep -l path-list)
$ perl -i -pe 's/path_list/string_list/g' $(git grep -l path_list)
$ git mv path-list.h string-list.h
$ git mv path-list.c string-list.c
$ perl -i -pe 's/has_path/has_string/g' $(git grep -l has_path)
$ perl -i -pe 's/path/string/g' string-list.[ch]
$ git mv Documentation/technical/api-path-list.txt \
	Documentation/technical/api-string-list.txt
$ perl -i -pe 's/strdup_paths/strdup_strings/g' $(git grep -l strdup_paths)

... and then fix all users of string-list to access the member "string"
instead of "path".

Documentation/technical/api-string-list.txt needed some rewrapping, too.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/builtin-fetch.c b/builtin-fetch.c
index 61de50a..7eec4a0 100644
--- a/builtin-fetch.c
+++ b/builtin-fetch.c
@@ -5,7 +5,7 @@
 #include "refs.h"
 #include "commit.h"
 #include "builtin.h"
-#include "path-list.h"
+#include "string-list.h"
 #include "remote.h"
 #include "transport.h"
 #include "run-command.h"
@@ -465,8 +465,8 @@
 static int add_existing(const char *refname, const unsigned char *sha1,
 			int flag, void *cbdata)
 {
-	struct path_list *list = (struct path_list *)cbdata;
-	path_list_insert(refname, list);
+	struct string_list *list = (struct string_list *)cbdata;
+	string_list_insert(refname, list);
 	return 0;
 }
 
@@ -485,8 +485,8 @@
 			struct ref **head,
 			struct ref ***tail)
 {
-	struct path_list existing_refs = { NULL, 0, 0, 0 };
-	struct path_list new_refs = { NULL, 0, 0, 1 };
+	struct string_list existing_refs = { NULL, 0, 0, 0 };
+	struct string_list new_refs = { NULL, 0, 0, 1 };
 	char *ref_name;
 	int ref_name_len;
 	const unsigned char *ref_sha1;
@@ -515,11 +515,11 @@
 			}
 		}
 
-		if (!path_list_has_path(&existing_refs, ref_name) &&
-		    !path_list_has_path(&new_refs, ref_name) &&
+		if (!string_list_has_string(&existing_refs, ref_name) &&
+		    !string_list_has_string(&new_refs, ref_name) &&
 		    (has_sha1_file(ref->old_sha1) ||
 		     will_fetch(head, ref->old_sha1))) {
-			path_list_insert(ref_name, &new_refs);
+			string_list_insert(ref_name, &new_refs);
 
 			rm = alloc_ref_from_str(ref_name);
 			rm->peer_ref = alloc_ref_from_str(ref_name);
@@ -530,8 +530,8 @@
 		}
 		free(ref_name);
 	}
-	path_list_clear(&existing_refs, 0);
-	path_list_clear(&new_refs, 0);
+	string_list_clear(&existing_refs, 0);
+	string_list_clear(&new_refs, 0);
 }
 
 static int do_fetch(struct transport *transport,