Do not overwrite GEM_PATH if already set
GEM_PATH
The bundler's test sets the GEM_PATH and GEM_HOME environment variables by itself. Overwriting them results in tons of errors.
GEM_HOME
Do not overwrite
GEM_PATH
if already setThe bundler's test sets the
GEM_PATH
andGEM_HOME
environmentvariables by itself. Overwriting them results in tons of errors.