Revert "Tab align value of GIT_FILEMODE_BLOB_EXECUTABLE"

This reverts commit 47fbcbb5.

include/git2/types.h

@@ -180,7 +180,7 @@ typedef enum {
 	GIT_FILEMODE_NEW					= 0000000,
 	GIT_FILEMODE_TREE					= 0040000,
 	GIT_FILEMODE_BLOB					= 0100644,
-	GIT_FILEMODE_BLOB_EXECUTABLE				= 0100755,
+	GIT_FILEMODE_BLOB_EXECUTABLE		= 0100755,
 	GIT_FILEMODE_LINK					= 0120000,
 	GIT_FILEMODE_COMMIT					= 0160000,
 } git_filemode_t;