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Replace fprintf by errx for consistency

Signed-off-by: Antonio Niño Díaz <[email protected]>

--- a/src/link/main.c

+++ b/src/link/main.c

@@ -77,8 +77,7 @@

 				errx(1, "Invalid argument for option 'p'");

 			}

 			if (fillchar < 0 || fillchar > 0xFF) {

-				fprintf(stderr, "Argument for option 'p' must be between 0 and 0xFF");

-				exit(1);

+				errx(1, "Argument for option 'p' must be between 0 and 0xFF");

 			}

 			break;

 		case 's':

--- a/src/link/output.c

+++ b/src/link/output.c

@@ -111,18 +111,15 @@

 		if (tzOverlayname) {

 			f_overlay = fopen(tzOverlayname, "rb");

 			if (!f_overlay) {

-				fprintf(stderr, "Failed to open overlay file %s\n", tzOverlayname);

-				exit(1);

+				errx(1, "Failed to open overlay file %s\n", tzOverlayname);

 			}

 			fseek(f_overlay, 0, SEEK_END);

 			if (ftell(f_overlay) % 0x4000 != 0) {

-				fprintf(stderr, "Overlay file must be aligned to 0x4000 bytes\n");

-				exit(1);

+				errx(1, "Overlay file must be aligned to 0x4000 bytes\n");

 			}

 			MaxOverlayBank = (ftell(f_overlay) / 0x4000) - 1;

 			if (MaxOverlayBank < 1) {

-				fprintf(stderr, "Overlay file be at least 0x8000 bytes\n");

-				exit(1);

+				errx(1, "Overlay file must be at least 0x8000 bytes\n");

 			}

 			if (MaxOverlayBank > MaxBankUsed) {

 				MaxBankUsed = MaxOverlayBank;