git-jump: admit to passing merge mode args to ls-files

There's even an example of such usage in the README.

Fixes: 67ba13e ("git-jump: pass "merge" arguments to ls-files")
Signed-off-by: Štěpán Němec <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: stepnem

contrib/git-jump/git-jump

@@ -9,7 +9,7 @@ The <mode> parameter is one of:
 
 diff: elements are diff hunks. Arguments are given to diff.
 
-merge: elements are merge conflicts. Arguments are ignored.
+merge: elements are merge conflicts. Arguments are given to ls-files -u.
 
 grep: elements are grep hits. Arguments are given to git grep or, if
       configured, to the command in `jump.grepCmd`.