check_procs.c: fix warning suggest parentheses around ‘&&’ within ‘||’

plugins/check_procs.c

@@ -249,7 +249,7 @@ main (int argc, char **argv)
 
 			/* Ignore self */
 			if ((usepid && mypid == procpid) ||
-				(!usepid && ((ret = stat_exe(procpid, &statbuf) != -1) && statbuf.st_dev == mydev && statbuf.st_ino == myino) ||
+				((!usepid && ((ret = stat_exe(procpid, &statbuf) != -1) && statbuf.st_dev == mydev && statbuf.st_ino == myino)) ||
 				 (ret == -1 && errno == ENOENT))) {
 				if (verbose >= 3)
 					 printf("not considering - is myself or gone\n");