update-index: do not die too early in a read-only repository.

diff --git a/Documentation/git-grep.txt b/Documentation/git-grep.txt
index bfbece9864a3c6d8b38dd526e2483fea0fb0b58f..0140c8e3580c7be90648f5ea0186a5c925ee1584 100644 (file)
--- a/Documentation/git-grep.txt
+++ b/Documentation/git-grep.txt
@@ -91,7 +91,7 @@ OPTIONS
        combined by 'or'.
 
 --and | --or | --not | ( | )::
-       Specify how multiple patterns are combined using boolean
+       Specify how multiple patterns are combined using Boolean
        expressions.  `--or` is the default operator.  `--and` has
        higher precedence than `--or`.  `-e` has to be used for all
        patterns.