prlimit: use err_exclusive_options()

Signed-off-by: Karel Zak <kzak@redhat.com>

sys-utils/prlimit.c

@@ -34,7 +34,6 @@
 #include "strutils.h"
 #include "list.h"
 #include "closestream.h"
-#include "optutils.h"
 
 #ifndef RLIMIT_RTTIME
 # define RLIMIT_RTTIME 15
@@ -484,12 +483,6 @@ int main(int argc, char **argv)
 		RAW_OPTION,
 		NOHEADINGS_OPTION
 	};
-	enum {
-		EXCL_NONE,
-		EXCL_COMMAND,
-		EXCL_PID
-	};
-	int excl_pcom = EXCL_NONE;
 
 	static const struct option longopts[] = {
 		{ "pid",	required_argument, NULL, 'p' },
@@ -585,7 +578,8 @@ int main(int argc, char **argv)
 			break;
 
 		case 'p':
-			exclusive_option(&excl_pcom, EXCL_PID + optind, _("--pid and --pid"));
+			if (pid)
+				errx(EXIT_FAILURE, _("only one --pid option may be specified."));
 			pid = strtos32_or_err(optarg, _("invalid PID argument"));
 			break;
 		case 'h':
@@ -616,8 +610,7 @@ int main(int argc, char **argv)
 		}
 	}
 	if (argc > optind && pid)
-		exclusive_option(&excl_pcom, EXCL_COMMAND,
-				 _("--pid and COMMAND"));
+		errx(EXIT_FAILURE, _("options --pid and COMMAND are mutually exclusive."));
 	if (!ncolumns) {
 		/* default columns */
 		columns[ncolumns++] = COL_RES;