Don't let git touch newlines in testdata

dominikh · dominikh · commit 87269a9c66b6 · 2022-05-16T16:29:22.000+02:00
(cherry picked from commit 4a24695)
diff --git a/.gitattributes b/.gitattributes
@@ -1,2 +1,3 @@
 *.golden -text
 *.svg binary
+**/testdata/** -text
