Add compat/fopen.c which returns NULL on attempt to open directory

diff --git a/git-am.sh b/git-am.sh
index 5f0f241ad0bb53960d5969df5445760633f87dbc..2ecebc45a93784f1ca377941cd9b96569b3ade1c 100755 (executable)
--- a/git-am.sh
+++ b/git-am.sh
@@ -14,7 +14,7 @@ b,binary        pass --allo-binary-replacement to git-apply
 3,3way          allow fall back on 3way merging if needed
 s,signoff       add a Signed-off-by line to the commit message
 u,utf8          recode into utf8 (default)
-k,keep          pass -k flagg to git-mailinfo
+k,keep          pass -k flag to git-mailinfo
 whitespace=     pass it through git-apply
 C=              pass it through git-apply
 p=              pass it through git-apply