Documentation: rename gitlink macro to linkgit

Between AsciiDoc 8.2.2 and 8.2.3, the following change was made to the stock
Asciidoc configuration:

@@ -149,7 +153,10 @@
 # Inline macros.
 # Backslash prefix required for escape processing.
 # (?s) re flag for line spanning.
-(?su)[\\]?(?P<name>\w(\w|-)*?):(?P<target>\S*?)(\[(?P<attrlist>.*?)\])=
+
+# Explicit so they can be nested.
+(?su)[\\]?(?P<name>(http|https|ftp|file|mailto|callto|image|link)):(?P<target>\S*?)(\[(?P<attrlist>.*?)\])=
+
 # Anchor: [[[id]]]. Bibliographic anchor.
 (?su)[\\]?\[\[\[(?P<attrlist>[\w][\w-]*?)\]\]\]=anchor3
 # Anchor: [[id,xreflabel]]

This default regex now matches explicit values, and unfortunately in this
case gitlink was being matched by just 'link', causing the wrong inline
macro template to be applied. By renaming the macro, we can avoid being
matched by the wrong regex.

Signed-off-by: Dan McGee <dpmcgee@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/Documentation/git-receive-pack.txt b/Documentation/git-receive-pack.txt
index 2633d94..4111434 100644
--- a/Documentation/git-receive-pack.txt
+++ b/Documentation/git-receive-pack.txt
@@ -149,7 +149,7 @@
 
 SEE ALSO
 --------
-gitlink:git-send-pack[1]
+linkgit:git-send-pack[1]
 
 
 Author
@@ -162,4 +162,4 @@
 
 GIT
 ---
-Part of the gitlink:git[7] suite
+Part of the linkgit:git[7] suite