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-rw-r--r--src/filelock.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/filelock.c b/src/filelock.c
index 64310f5c538..5cec1996201 100644
--- a/src/filelock.c
+++ b/src/filelock.c
@@ -296,7 +296,7 @@ typedef struct
/* Write the name of the lock file for FNAME into LOCKNAME. Length
will be that of FNAME plus two more for the leading ".#", plus one
- for the null. */
+ for the NUL. */
#define MAKE_LOCK_NAME(lockname, fname) \
(lockname = SAFE_ALLOCA (SBYTES (fname) + 2 + 1), \
fill_in_lock_file_name (lockname, fname))