Fixed type for getopt_long return value.

src/tools/cuebreakpoints.c

@@ -121,7 +121,7 @@ int main (int argc, char **argv)
 	int gaps = APPEND;
 
 	/* option variables */
-	char c;
+	int c;
 	/* getopt_long() variables */
 	extern char *optarg;
 	extern int optind;

src/tools/cueconvert.c

@@ -77,7 +77,7 @@ int main (int argc, char **argv)
 	int iformat = UNKNOWN;
 	int oformat = UNKNOWN;
 	/* option variables */
-	char c;
+	int c;
 	/* getopt_long() variables */
 	extern char *optarg;
 	extern int optind;

src/tools/cueprint.c

@@ -438,8 +438,9 @@ int main (int argc, char **argv)
 	int trackno = -1;		/* track number (-1 = unspecified, 0 = disc info) */
 	char *d_template = NULL;	/* disc template */
 	char *t_template = NULL;	/* track template */
+	/* option variables */
+	int c;
 	/* getopt_long() variables */
-	char c;
 	extern char *optarg;
 	extern int optind;