remove BOM from file

.gitattributes

@@ -1,11 +1,11 @@
 # -- --------------------------------------------------------------------
 # -- Powershell Source files
 # -- --------------------------------------------------------------------
-*.ps1      text eol=crlf
-*.ps1x     text eol=crlf
-*.psm1     text eol=crlf
-*.psd1     text eol=crlf
-*.ps1xml   text eol=crlf
-*.pssc     text eol=crlf
-*.psrc     text eol=crlf
-*.cdxml    text eol=crlf
+*.ps1      diff text eol=crlf
+*.ps1x     diff text eol=crlf
+*.psm1     diff text eol=crlf
+*.psd1     diff text eol=crlf
+*.ps1xml   diff text eol=crlf
+*.pssc     diff text eol=crlf
+*.psrc     diff text eol=crlf
+*.cdxml    diff text eol=crlf