clean gemset pristine, fix #907

scripts/gemsets

@@ -924,19 +924,18 @@ gemset_pristine()
 
     while read _gem _version _platforms
     do
-      printf "%b" "${_gem}-${_version} " | tee /dev/stderr
+      printf "%b" "${_gem}-${_version} "
       if ! gem pristine ${_gem} --version ${_version} >/dev/null
       then _failed+=( "${_gem} --version ${_version}" )
       fi
     done < <( GEM_PATH="$GEM_HOME" __rvm_list_gems )
 
     if (( ${#_failed[@]} > 0 ))
     then
-      printf "%b" "\n"
-      rvm_error "'gem pristine ${_failed[*]}' failed, you need to fix this gems manually."
+      rvm_error "\n'gem pristine ${_failed[*]}' failed, you need to fix this gems manually."
       return 1
     else
-      rvm_log "finished."
+      rvm_log "\nfinished."
       return 0
     fi