git-p4: Unset P4DIFF environment variable when using 'p4 -du diff'

diff --git a/Documentation/git-merge-index.txt b/Documentation/git-merge-index.txt
index 332e023d0f14be813ead6cb6915938910ea3a719..19ee017aede4bf8fa0a0046b2bf347e3d75c4a12 100644 (file)
--- a/Documentation/git-merge-index.txt
+++ b/Documentation/git-merge-index.txt
@@ -3,12 +3,12 @@ git-merge-index(1)
 
 NAME
 ----
-git-merge-index - Runs a merge for files needing merging
+git-merge-index - Run a merge for files needing merging
 
 
 SYNOPSIS
 --------
-'git-merge-index' [-o] [-q] <merge-program> (-a | \-- | <file>\*)
+'git-merge-index' [-o] [-q] <merge-program> (-a | [--] <file>\*)
 
 DESCRIPTION
 -----------
@@ -40,8 +40,8 @@ If "git-merge-index" is called with multiple <file>s (or -a) then it
 processes them in turn only stopping if merge returns a non-zero exit
 code.
 
-Typically this is run with the a script calling the merge command from
-the RCS package.
+Typically this is run with a script calling git's imitation of
+the merge command from the RCS package.
 
 A sample script called "git-merge-one-file" is included in the
 distribution.
@@ -59,7 +59,7 @@ Examples:
   This is modified MM in the branch B.                 # merge2
   This is modified MM in the branch B.                 # current contents
 
-or 
+or
 
   torvalds@ppc970:~/merge-test> git-merge-index cat AA MM
   cat: : No such file or directory
@@ -69,7 +69,7 @@ or
   fatal: merge program failed
 
 where the latter example shows how "git-merge-index" will stop trying to
-merge once anything has returned an error (ie "cat" returned an error
+merge once anything has returned an error (i.e., "cat" returned an error
 for the AA file, because it didn't exist in the original, and thus
 "git-merge-index" didn't even try to merge the MM thing).
 
@@ -84,5 +84,4 @@ Documentation by David Greaves, Junio C Hamano and the git-list <git@vger.kernel
 
 GIT
 ---
-Part of the gitlink:git[7] suite
-
+Part of the linkgit:git[7] suite