policycoreutils: add noreturn attribute to usage()

Signed-off-by: Nicolas Iooss <nicolas.iooss@m4x.org>

policycoreutils/hll/pp/pp.c

@@ -46,7 +46,7 @@ static void log_err(const char *fmt, ...)
 	}
 }
 
-static void usage(int err)
+static __attribute__((__noreturn__)) void usage(int err)
 {
 	fprintf(stderr, "Usage: %s [OPTIONS] [IN_FILE [OUT_FILE]]\n", progname);
 	fprintf(stderr, "\n");

policycoreutils/load_policy/load_policy.c

@@ -17,7 +17,7 @@
 #define PACKAGE "policycoreutils"	/* the name of this package lang translation */
 #endif
 
-void usage(char *progname)
+static __attribute__((__noreturn__)) void usage(const char *progname)
 {
 	fprintf(stderr, _("usage:  %s [-qi]\n"), progname);
 	exit(1);

policycoreutils/secon/secon.c

@@ -73,7 +73,7 @@ struct {
 		FALSE, FALSE, FALSE, FALSE, FALSE, FALSE,
 		    FALSE, FALSE, FALSE, OPTS_FROM_ARG, {0} } };
 
-static void usage(const char *name, int exit_code)
+static __attribute__((__noreturn__)) void usage(const char *name, int exit_code)
 {
 	fprintf(exit_code ? stderr : stdout,
 		"  Usage: %s [-%s] [ context | - ]\n"

policycoreutils/setfiles/restorecon_xattr.c

@@ -14,7 +14,7 @@
 
 #include "restore.h"
 
-static void usage(const char *progname)
+static __attribute__((__noreturn__)) void usage(const char *progname)
 {
 	fprintf(stderr,
 		"\nusage: %s [-vnrmdD] [-e directory] [-f specfile] pathname\n"

policycoreutils/setfiles/setfiles.c

@@ -39,7 +39,7 @@ static int iamrestorecon;
 static int ctx_validate; /* Validate contexts */
 static const char *altpath; /* Alternate path to file_contexts */
 
-void usage(const char *const name)
+static __attribute__((__noreturn__)) void usage(const char *const name)
 {
 	if (iamrestorecon) {
 		fprintf(stderr,

policycoreutils/setsebool/setsebool.c

@@ -23,7 +23,7 @@ int verbose = 0;
 
 int setbool(char **list, size_t start, size_t end);
 
-void usage(void)
+static __attribute__((__noreturn__)) void usage(void)
 {
 	fputs
 	    ("\nUsage:  setsebool [ -NPV ] boolean value | bool1=val1 bool2=val2...\n\n",