Fix trivial typo in git-log man page.

Signed-off-by: Sean Estabrooks <seanlkml@sympatico.ca>
diff --git a/Documentation/git-log.txt b/Documentation/git-log.txt
index 76cb894..af378ff 100644
--- a/Documentation/git-log.txt
+++ b/Documentation/git-log.txt
@@ -14,13 +14,12 @@
 -----------
 Shows the commit logs.
 
-The command takes options applicable to the gitlink::git-rev-list[1]
+The command takes options applicable to the gitlink:git-rev-list[1]
 command to control what is shown and how, and options applicable to
-the gitlink::git-diff-tree[1] commands to control how the change
+the gitlink:git-diff-tree[1] commands to control how the change
 each commit introduces are shown.
 
-This manual page describes only the most frequently used
-options.
+This manual page describes only the most frequently used options.
 
 
 OPTIONS