Fix opendir error condition checks

Thanks to Laszlo Papp <djszapi@archlinux.us> for the following catch:
  opendir(path)) == (DIR *)-1;
is maybe the result of misunderstanding the manpage. If an opendir() call
isn't successful it returns NULL rather than '(DIR *)-1'.

Noticed-by: Laszlo Papp <djszapi@archlinux.us>
Signed-off-by: Dan McGee <dan@archlinux.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/src/pacman/util.c b/src/pacman/util.c
index a02b43cd..c68e6841 100644
--- a/src/pacman/util.c
+++ b/src/pacman/util.c
@@ -174,7 +174,8 @@ int rmrf(const char *path)
 			return(1);
 		}
 
-		if((dirp = opendir(path)) == (DIR *)-1) {
+		dirp = opendir(path);
+		if(!dirp) {
 			return(1);
 		}
 		for(dp = readdir(dirp); dp != NULL; dp = readdir(dirp)) {