Fix up commit-tree/diff-tree user interface issues.

No, this doesn't make them easy to use, but makes diff-tree use
the "-r" flag for "recursive" (not "-R") and makes commit-tree
use AUTHOR_xxx environment flags (not COMMITTER_xxx) to match what
it actually does.

1 files changed, 1 insertions, 1 deletions

diff --git a/diff-tree.c b/diff-tree.c
index 5cf6057f45..1960c23561 100644
--- a/diff-tree.c
+++ b/diff-tree.c
@@ -180,7 +180,7 @@ int main(int argc, char **argv)
 		char *arg = argv[1];
 		argv++;
 		argc--;
-		if (!strcmp(arg, "-R")) {
+		if (!strcmp(arg, "-r")) {
 			recursive = 1;
 			continue;
 		}