detect: minor formatting fixups

src/detect.h

@@ -253,7 +253,7 @@ typedef struct DetectPort_ {
 #define SIG_FLAG_HAS_TARGET     (SIG_FLAG_DEST_IS_TARGET|SIG_FLAG_SRC_IS_TARGET)
 
 /* signature init flags */
-#define SIG_FLAG_INIT_DEONLY         1  /**< decode event only signature */
+#define SIG_FLAG_INIT_DEONLY                (1<<0)  /**< decode event only signature */
 #define SIG_FLAG_INIT_PACKET                (1<<1)  /**< signature has matches against a packet (as opposed to app layer) */
 #define SIG_FLAG_INIT_FLOW                  (1<<2)  /**< signature has a flow setting */
 #define SIG_FLAG_INIT_BIDIREC               (1<<3)  /**< signature has bidirectional operator */