normalize example exit status

Use EXIT_SUCCESS / EXIT_FAILURE in most cases as more granularity isn't
useful. For anim_diff, use 0 (success), 1 (image difference) and 2
(error) to align it with other diff utilities (diff, etc.).

Bug: webp:637
Change-Id: I52925de8622a5a4d2141883279d69a1d95ef9b12
This commit is contained in:
James Zern
2024-04-30 18:18:23 -07:00
parent edc289092a
commit a67ff735a2
19 changed files with 139 additions and 72 deletions

View File

@ -1,5 +1,5 @@
.\" Hey, EMACS: -*- nroff -*-
.TH VWEBP 1 "November 17, 2021"
.TH VWEBP 1 "April 30, 2024"
.SH NAME
vwebp \- decompress a WebP file and display it in a window
.SH SYNOPSIS
@ -72,6 +72,13 @@ Disable blending and disposal process, for debugging purposes.
.B 'q' / 'Q' / ESC
Quit.
.SH EXIT STATUS
If there were no problems during execution, \fBvwebp\fP exits with the value of
the C constant \fBEXIT_SUCCESS\fP. This is usually zero.
.PP
If an error occurs, \fBvwebp\fP exits with the value of the C constant
\fBEXIT_FAILURE\fP. This is usually one.
.SH BUGS
Please report all bugs to the issue tracker:
https://bugs.chromium.org/p/webp