Fix clang build warning

Signed-off-by: Morgan Douglas <[email protected]>

Author: morgando

sqlite/src/comdb2lua.c

@@ -24,7 +24,7 @@ int bdb_get_sp_get_default_version(const char *, int *);
 extern int gbl_create_default_consumer_atomically;
 extern int gbl_sc_protobuf;
 
-#define MAX_SPNAME_FOR_TRIGGER MAX_SPNAME-strlen(Q_TAG) // includes null terminator
+#define MAX_SPNAME_FOR_TRIGGER (MAX_SPNAME-(sizeof(Q_TAG)-1)) // includes null terminator
 #define COMDB2_DEFAULT_CONSUMER 2
 
 static int comdb2LocateSP(Parse *p, char *sp)