Try another way
diff --git a/.gitattributes b/.gitattributes
index 631f41a..8214dab 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1,6 +1,5 @@
-src/test/resources/longfile_gnu.ar      eol=lf
-src/test/resources/longfile_bsd.ar      eol=lf
-src/test/resources/longpath/minotaur.ar eol=lf
+*.ar                                    binary
+*.arj                                   binary
 # These must be identical to the copies in SHRUNK.ZIP
 src/test/resources/test1.xml            eol=lf
 src/test/resources/test2.xml            eol=lf