Add user id param

admin/win/docker/build.sh

@@ -1,6 +1,11 @@
 #!/bin/bash
 
-useradd user
+if [ $# -lt 1 ]; then
+  echo "Usage: $(basename $0) directory_relative_to_home [uid]"
+  exit
+fi
+
+useradd user -u ${2:-1000}
 su - user << EOF
 cd /home/user/$1
 rm -rf build-win32
@@ -10,5 +15,5 @@ cd build-win32
 cmake .. -DCMAKE_TOOLCHAIN_FILE=../admin/win/Toolchain-mingw32-openSUSE.cmake -DWITH_CRASHREPORTER=ON
 make -j4
 make package
-
+ctest .
 EOF