Merge changes I994a5587,I8467bb71,I13b50688,I1e2c9c7b

* changes:
  gif2webp: let -- stop parameter parsing
  vwebp: let -- stop parameter parsing
  cwebp: let -- stop parameter parsing
  dwebp: let -- stop parameter parsing

examples/cwebp.c

@@ -895,6 +895,9 @@ int main(int argc, const char *argv[]) {
 #endif
     } else if (!strcmp(argv[c], "-v")) {
       verbose = 1;
+    } else if (!strcmp(argv[c], "--")) {
+      if (c < argc - 1) in_file = argv[++c];
+      break;
     } else if (argv[c][0] == '-') {
       fprintf(stderr, "Error! Unknown option '%s'\n", argv[c]);
       HelpLong();

examples/dwebp.c

@@ -649,6 +649,9 @@ int main(int argc, const char *argv[]) {
 #endif
     } else if (!strcmp(argv[c], "-incremental")) {
       incremental = 1;
+    } else if (!strcmp(argv[c], "--")) {
+      if (c < argc - 1) in_file = argv[++c];
+      break;
     } else if (argv[c][0] == '-') {
       fprintf(stderr, "Unknown option '%s'\n", argv[c]);
       Help();

examples/gif2webp.c

@@ -359,6 +359,9 @@ int main(int argc, const char *argv[]) {
       quiet = 1;
     } else if (!strcmp(argv[c], "-v")) {
       verbose = 1;
+    } else if (!strcmp(argv[c], "--")) {
+      if (c < argc - 1) in_file = argv[++c];
+      break;
     } else if (argv[c][0] == '-') {
       fprintf(stderr, "Error! Unknown option '%s'\n", argv[c]);
       Help();

examples/vwebp.c

@@ -425,6 +425,9 @@ int main(int argc, char *argv[]) {
       return 0;
     } else if (!strcmp(argv[c], "-mt")) {
       config->options.use_threads = 1;
+    } else if (!strcmp(argv[c], "--")) {
+      if (c < argc - 1) kParams.file_name = argv[++c];
+      break;
     } else if (argv[c][0] == '-') {
       printf("Unknown option '%s'\n", argv[c]);
       Help();

man/cwebp.1

@@ -1,5 +1,5 @@
 .\"                                      Hey, EMACS: -*- nroff -*-
-.TH CWEBP 1 "October 23, 2013"
+.TH CWEBP 1 "December 12, 2013"
 .SH NAME
 cwebp \- compress an image file to a WebP file
 .SH SYNOPSIS
@@ -255,6 +255,8 @@ cwebp \-q 50 -lossless picture.png \-o picture_lossless.webp
 cwebp \-q 70 picture_with_alpha.png \-o picture_with_alpha.webp
 .br
 cwebp \-sns 70 \-f 50 \-size 60000 picture.png \-o picture.webp
+.br
+cwebp \-o picture.webp \-\- \-\-\-picture.png
 
 .SH AUTHORS
 \fBcwebp\fP was written by the WebP team.

man/dwebp.1

@@ -1,5 +1,5 @@
 .\"                                      Hey, EMACS: -*- nroff -*-
-.TH DWEBP 1 "November 26, 2013"
+.TH DWEBP 1 "December 12, 2013"
 .SH NAME
 dwebp \- decompress a WebP file to an image file
 .SH SYNOPSIS
@@ -99,6 +99,8 @@ http://www.webmproject.org/code/contribute/submitting-patches/
 dwebp picture.webp \-o output.png
 .br
 dwebp picture.webp \-ppm \-o output.ppm
+.br
+dwebp \-o output.ppm \-\- \-\-\-picture.webp
 
 .SH AUTHORS
 \fBdwebp\fP was written by the WebP team.

man/gif2webp.1

@@ -1,5 +1,5 @@
 .\"                                      Hey, EMACS: -*- nroff -*-
-.TH GIF2WEBP 1 "November 18, 2013"
+.TH GIF2WEBP 1 "December 12, 2013"
 .SH NAME
 gif2webp \- Convert a GIF image to WebP
 .SH SYNOPSIS
@@ -119,6 +119,8 @@ gif2webp \-q 70 picture.gif \-o picture.webp
 gif2webp \-lossy \-m 3 picture.gif \-o picture_lossy.webp
 .br
 gif2webp \-lossy \-f 50 picture.gif \-o picture.webp
+.br
+gif2webp \-q 70 \-o picture.webp \-\- \-\-\-picture.gif
 
 .SH AUTHORS
 \fBgif2webp\fP was written by the WebP team.