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-rw-r--r--src/include/regex/regex.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/include/regex/regex.h b/src/include/regex/regex.h
index 2b48a19fb7d..0455ae8069e 100644
--- a/src/include/regex/regex.h
+++ b/src/include/regex/regex.h
@@ -106,7 +106,7 @@ typedef struct
#define REG_QUOTE 000004 /* no special characters, none */
#define REG_NOSPEC REG_QUOTE /* historical synonym */
#define REG_ICASE 000010 /* ignore case */
-#define REG_NOSUB 000020 /* don't care about subexpressions */
+#define REG_NOSUB 000020 /* caller doesn't need subexpr match data */
#define REG_EXPANDED 000040 /* expanded format, white space & comments */
#define REG_NLSTOP 000100 /* \n doesn't match . or [^ ] */
#define REG_NLANCH 000200 /* ^ matches after \n, $ before */