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normalize example exit status

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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
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9
man/webpmux.1
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@ -1,5 +1,5 @@
.\" Hey, EMACS: -*- nroff -*-
.TH WEBPMUX 1 "November 17, 2021"
.TH WEBPMUX 1 "April 30, 2024"
.SH NAME
webpmux \- create animated WebP files from non\-animated WebP images, extract
frames from animated WebP images, and manage XMP/EXIF metadata and ICC profile.
@ -186,6 +186,13 @@ Output file in WebP format.
.TP
The nature of EXIF, XMP and ICC data is not checked and is assumed to be valid.
.SH EXIT STATUS
If there were no problems during execution, \fBwebpmux\fP exits with the value
of the C constant \fBEXIT_SUCCESS\fP. This is usually zero.
.PP
If an error occurs, \fBwebpmux\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