Fixes for -Wimplicit-fallthrough

plugins/check_curl.c

@@ -1654,6 +1654,7 @@ process_arguments (int argc, char **argv)
       break;
     case 'R': /* regex */
       cflags |= REG_ICASE;
+			// fall through
     case 'r': /* regex */
       strncpy (regexp, optarg, MAX_RE_SIZE - 1);
       regexp[MAX_RE_SIZE - 1] = 0;

plugins/check_dbi.c

@@ -426,6 +426,7 @@ process_arguments (int argc, char **argv)
 			else
 				timeout_interval = atoi (optarg);
 
+			break;
 		case 'H':     /* host */
 			if (!is_host (optarg))
 				usage2 (_("Invalid hostname/address"), optarg);

plugins/check_fping.c

@@ -354,6 +354,7 @@ process_arguments (int argc, char **argv)
       break;
     case 'I':                 /* sourceip */
       sourceif = strscpy (sourceif, optarg);
+			break;
     case '4':                 /* IPv4 only */
       address_family = AF_INET;
       break;

plugins/check_hpjd.c

@@ -353,6 +353,7 @@ process_arguments (int argc, char **argv)
 				usage2 (_("Port must be a positive short integer"), optarg);
 			else
 				port = atoi(optarg);
+			break;
 		case 'D':									/* disable paper out check*/
 			check_paper_out = 0;
 			break;

plugins/check_http.c

@@ -498,6 +498,7 @@ bool process_arguments (int argc, char **argv)
       break;
     case 'R': /* regex */
       cflags |= REG_ICASE;
+			// fall through
     case 'r': /* regex */
       strncpy (regexp, optarg, MAX_RE_SIZE - 1);
       regexp[MAX_RE_SIZE - 1] = 0;

plugins/check_smtp.c

@@ -616,6 +616,7 @@ process_arguments (int argc, char **argv)
 #else
 			usage (_("SSL support not available - install OpenSSL and recompile"));
 #endif
+			// fall through
 		case 'S':
 		/* starttls */
 			use_ssl = TRUE;

plugins/check_snmp.c

@@ -855,6 +855,7 @@ process_arguments (int argc, char **argv)
 			break;
 		case 'R':									/* regex */
 			cflags = REG_ICASE;
+			// fall through
 		case 'r':									/* regex */
 			cflags |= REG_EXTENDED | REG_NOSUB | REG_NEWLINE;
 			strncpy (regex_expect, optarg, sizeof (regex_expect) - 1);