Merge pull request #4076 from alcohol/force-lf-eol-for-functional-test-fixtures

apply .gitattributes much more widely

.gitattributes

@@ -1 +1,4 @@
-tests/Composer/Test/Fixtures/installer/*.test   eol=lf
+* text=auto
+*.php text diff=php
+*.json text eol=lf
+*.test text eol=lf