Automake: Use default compression format

Remove the forced bzip2 format and use only the default gzip
for the target `make dist`

Doc: make dist

Generate a ‘gzip’ tar archive of the distribution. This is the only format enabled
by default. By default, this rule makes gzip use a compression option of --best.
To make it use a different one, set the GZIP_ENV environment variable. For
example, ‘make dist-gzip GZIP_ENV=-7’.

Author: daltomi

configure.ac

@@ -4,7 +4,7 @@ AC_INIT([scrot], [1.7],
         [https://github.com/resurrecting-open-source-projects/scrot/issues],,
         [https://github.com/resurrecting-open-source-projects/scrot])
 AC_CONFIG_SRCDIR([src/scrot.c])
-AM_INIT_AUTOMAKE(dist-bzip2)
+AM_INIT_AUTOMAKE
 AC_CONFIG_HEADERS([src/config.h])
 
 # Checks for programs.