message: fix --ignore-rename on GNU sed
  Summary: turns out quoting things in bash is a good idea.
diff: @@ -57,8 +57,8 @@ function strip_cruft() {
  sed 's/string@[0-9a-f]*/string@/' | \
  sed 's/method@[0-9a-f]*/method@/' | \
  sed 's/field@[0-9a-f]*/field@/' | \
  - sed $RENAME_CLASS | \
  - sed $RENAME_CLASS_DEFINITION | \
  + sed "$RENAME_CLASS" | \
  + sed "$RENAME_CLASS_DEFINITION" | \
  sed 's/0x[0-9a-f]* line=[0-9]*//' | \
  sed 's/^|[0-9a-f]*:/|:/' | \
  sed '/^\s*$/d' \
  