--with-sources, downloading source packages flag.

system/t02_config/CreateConfigTest_gold

@@ -6,5 +6,6 @@
   "dependencyFollowRecommends": false,
   "dependencyFollowAllVariants": false,
   "gpgDisableSign": false,
-  "gpgDisableVerify": false
+  "gpgDisableVerify": false,
+  "downloadSourcePackages": false
 }

system/t03_help/MirrorCreateHelpTest_gold

@@ -8,4 +8,5 @@ ex:
 Options:
   -ignore-signatures=false: disable verification of Release file signatures
   -keyring=: gpg keyring to use when verifying Release file (could be specified multiple times)
+  -with-sources=false: download source packages
 

system/t03_help/MirrorCreateTest_gold

@@ -6,3 +6,4 @@ aptly mirror create - create new mirror of Debian repository
 Options:
   -ignore-signatures=false: disable verification of Release file signatures
   -keyring=: gpg keyring to use when verifying Release file (could be specified multiple times)
+  -with-sources=false: download source packages