t1512: skip test if not using SHA-1

diff --git a/Documentation/gitk.txt b/Documentation/gitk.txt
index 253efa617b08f3d4d144beb1fc6506be8db26858..244cd01493127035b27fb19416f1f4027a726bba 100644 (file)
--- a/Documentation/gitk.txt
+++ b/Documentation/gitk.txt
@@ -8,7 +8,7 @@ gitk - The Git repository browser
 SYNOPSIS
 --------
 [verse]
-'gitk' [<options>] [<revision range>] [\--] [<path>...]
+'gitk' [<options>] [<revision range>] [--] [<path>...]
 
 DESCRIPTION
 -----------
@@ -70,7 +70,7 @@ linkgit:git-rev-list[1] for a complete list.
 
 --left-right::
 
-       Mark which side of a symmetric diff a commit is reachable
+       Mark which side of a symmetric difference a commit is reachable
        from.  Commits from the left side are prefixed with a `<`
        symbol and those from the right with a `>` symbol.
 
@@ -82,7 +82,7 @@ linkgit:git-rev-list[1] for a complete list.
 
 --simplify-merges::
 
-       Additional option to '--full-history' to remove some needless
+       Additional option to `--full-history` to remove some needless
        merges from the resulting history, as there are no selected
        commits contributing to this merge.  (See "History
        simplification" in linkgit:git-log[1] for a more detailed