fix sources in zip

.appveyor.yml

@@ -21,10 +21,10 @@ test_script:
   - ps: $vmPlatform = "*win32x86*"
   - ps: $vmName = ((Invoke-RestMethod -Uri "https://api.bintray.com/search/file?name=$vmPlatform&subject=opensmalltalk&repo=vm") | select name | where name -Like "$vmFlavor" | sort name -descending)[0].name
   - ps: Start-FileDownload "https://bintray.com/opensmalltalk/vm/download_file?file_path=$vmName" -FileName vm.zip
-  - ps: Start-FileDownload "http://files.squeak.org/sources_files/SqueakV50.sources.gz" -FileName src.gz
+  - ps: Start-FileDownload "http://files.squeak.org/sources_files/SqueakV50.sources.gz" -FileName SqueakV50.sources.gz
   - ps: Start-FileDownload "http://files.squeak.org/5.0/Squeak5.0-15113.zip" -FileName img.zip
   - 7z e vm.zip > NUL
-  - 7z e src.gz > NUL
+  - 7z e SqueakV50.sources.gz > NUL
   - 7z e img.zip > NUL
   - ps: ls | where name -Like "*.o" | foreach {Remove-Item $_}
   - ps: ls | where name -Like "*.map" | foreach {Remove-Item $_}
@@ -33,7 +33,7 @@ test_script:
   - ps: ls | where name -Like "*.lib" | foreach {Remove-Item $_}
   #- ps: ls | where { ($_.name -Like "*.o") -or ($_.name -Like "*.map") } | foreach {Remove-Item $_}
   - ps: Remove-Item vm.zip
-  - ps: Remove-Item src.gz
+ # - ps: Remove-Item src.gz
   - ps: Remove-Item img.zip
   - 7z a -tzip %BUILD_ARTIFACT% *.*
   - ps: $pass = ConvertTo-SecureString "$env:deploy_pass" -AsPlainText -Force