Workaround git eol hell

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1531502 13f79535-47bb-0310-9956-ffa450edef68

.gitattributes

@@ -13,7 +13,8 @@
 
 *.sh     text eol=lf
 
-*.bat    text eol=crlf
-*.cmd    text eol=crlf
-*.csproj text merge=union eol=crlf
-*.sln    text merge=union eol=crlf
+*.bat    binary
+*.cmd    binary
+*.vcxproj binary
+*.csproj binary
+*.sln    binary