bug#21641: 25.0.50; Emacs crash on network connection?

[Eli Zaretskii]

> From: Glenn Morris <rgm@gnu.org>
> Cc: larsi@gnus.org,  21641@debbugs.gnu.org
> Date: Wed, 07 Oct 2015 13:22:32 -0400
> 
> Eli Zaretskii wrote:
> 
> > Can you show the details of the error message?
> 
> #1  0x00000000005da170 in styled_format (nargs=2, args=0x7ffffffd9800, 
>     message=true) at editfns.c:4060
>         minus_flag = false
>         space_flag = false
>         conversion = 115 's'
>         num_end = 0x6cca19 "s')"
>         raw_field_width = 0
>         precision_given = false
>         plus_flag = false
>         sharp_flag = false
>         zero_flag = false
>         field_width = 0
>         precision = 18446744073709551615
>         n0 = 0
>         format0 = 0x6cca18 "%s')"
>         convbytes = 1
>         convsrc = 0x6cca18 "%s')"
>         format_char = 37 '%'
>         used = 0
>         n = 1
>         initial_buffer =           "Invalid image size (see
>     
> ‘\000\000\000\000\000\365\350\037\001\000\000\000\000\002\000\000\000\016\000\000\000\245\330z\001",
>  '\000' <repeats 12 times>

Ouch!  Does the below help?

diff --git a/src/image.c b/src/image.c
index b586c53..6add400 100644
--- a/src/image.c
+++ b/src/image.c
@@ -647,7 +647,8 @@ image_error (const char *format, ...)
 static void
 image_size_error (void)
 {
-  image_error ("Invalid image size (see `%s')", "max-image-size");
+  image_error ("Invalid image size (see `%s')",
+              build_string ("max-image-size"));
 }