git log --format= isn't in older git, but git log --pretty=format: is.

Signed-off-by: Avery Pennarun <apenwarr@gmail.com>

diff --git a/format-subst.pl b/format-subst.pl
index e04e1238965d67c98b901d4f6de8eea3018866f0..8b834c42ea6127432caf9374a42affdba440612f 100755 (executable)
--- a/format-subst.pl
+++ b/format-subst.pl
@@ -19,7 +19,7 @@ while (<>) {
     s{ 
        \$Format:([^\$].*)\$
     }{
-       fix(`git log -1 --format="$1"`)
+       fix(`git log -1 --pretty=format:"$1"`)
     }ex;
     print;
 }