hashmap: clarify that hashmap_entry can safely be discarded

diff --git a/Documentation/git-grep.txt b/Documentation/git-grep.txt
index 1c07c7fe9ac8fe9835458fb56f479574d9481fb5..4a44d6da13cb749759f9d6164b88974ba55485ab 100644 (file)
--- a/Documentation/git-grep.txt
+++ b/Documentation/git-grep.txt
@@ -165,7 +165,10 @@ OPTIONS
        Open the matching files in the pager (not the output of 'grep').
        If the pager happens to be "less" or "vi", and the user
        specified only one pattern, the first file is positioned at
-       the first match automatically.
+       the first match automatically. The `pager` argument is
+       optional; if specified, it must be stuck to the option
+       without a space. If `pager` is unspecified, the default pager
+       will be used (see `core.pager` in linkgit:git-config[1]).
 
 -z::
 --null::