hexdump: remove unnecessary global variables

Signed-off-by: Sami Kerola <kerolasa@iki.fi>

text-utils/display.c

@@ -295,7 +295,7 @@ get(void)
 int next(char **argv)
 {
 	static int done;
-	int statok;
+	int statok, exitval = 0;
 
 	if (argv) {
 		_argv = argv;
@@ -305,14 +305,14 @@ int next(char **argv)
 		if (*_argv) {
 			if (!(freopen(*_argv, "r", stdin))) {
 				warn("%s", *_argv);
-				exitval = EXIT_FAILURE;
+				exitval = 1;
 				++_argv;
 				continue;
 			}
 			statok = done = 1;
 		} else {
 			if (done++)
-				return(0);
+				return(exitval);
 			statok = 0;
 		}
 		if (skip)

text-utils/hexdump.c

@@ -47,11 +47,11 @@
 
 FS *fshead;				/* head of format strings */
 ssize_t blocksize;			/* data block size */
-int exitval;				/* final exit value */
 ssize_t length = -1;			/* max bytes to read */
 
 int main(int argc, char **argv)
 {
+	int exitval;			/* final exit value */
 	FS *tfs;
 	char *p;
 
@@ -76,7 +76,7 @@ int main(int argc, char **argv)
 	for (tfs = fshead; tfs; tfs = tfs->nextfs)
 		rewrite(tfs);
 
-	(void)next(argv);
+	exitval = next(argv);
 	display();
 	return exitval;
 }

text-utils/hexdump.h

@@ -73,8 +73,6 @@ typedef struct _fs {			/* format strings */
 extern FU *endfu;
 extern FS *fshead;			/* head of format strings list */
 extern ssize_t blocksize;		/* data block size */
-extern int deprecated;			/* od compatibility */
-extern int exitval;			/* final exit value */
 extern ssize_t length;			/* max bytes to read */
 extern off_t skip;                      /* bytes to skip */