style fixes

pscat/pscat.c

@@ -1,7 +1,8 @@
-#include <stdio.h>
-#include <sysexits.h>
-#include <unistd.h>
-#include <sys/wait.h>
+#include <stdio.h> /* fprintf(3), stderr */
+#include <sysexits.h> /* EX_USAGE */
+#include <unistd.h> /* execvp(3) */
+#include <sys/types.h> /* <sys/wait.h> */
+#include <sys/wait.h> /* wait(2) */
 
 #include "psargs.h"
 
@@ -31,7 +32,7 @@ forking(char **argv){
 
 int main(int argc, char *argv[]){
 
-	if((check_arg(++argv, L_PAREN, R_PAREN)) == 0){
+	if(check_arg(++argv, L_PAREN, R_PAREN) == 0){
 		fprintf(stderr,
 			"Usage: %s \"[\" [utility [argument...]] \"]\" ...\n",
 			argv[-1] == NULL ? program_name : argv[-1]