Merge branch 'patch-1' of git://github.com/SpyCheese/thefuck into SpyCheese-patch-1

thefuck/rules/rm_root.py

@@ -0,0 +1,8 @@
+def match(command, settings):
+    return ('/' in command.script.split()
+            and '--no-preserve-root' not in command.script
+            and '--no-preserve-root' in command.stderr)
+
+
+def get_new_command(command, settings):
+    return '{} --no-preserve-root'.format(command.script)