* sed -i 's/text-auto$/\0 eol=lf/' {.,c#,fe}/.gitattributes

$ sed -i 's/ eol=crlf//' {.,c#,fe}/.gitattributes

.gitattributes

@@ -2,7 +2,7 @@
 # Common settings that generally should always be used with your language specific settings
 
 # Auto detect text files and perform LF normalization
-*          text=auto
+*          text=auto eol=lf
 
 #
 # The above will handle all files NOT found below
@@ -26,7 +26,7 @@
 *.adoc     text
 *.textile  text
 *.mustache text
-*.csv      text eol=crlf
+*.csv      text
 *.tab      text
 *.tsv      text
 *.txt      text
@@ -55,9 +55,9 @@
 *.sh       text eol=lf
 *.zsh      text eol=lf
 # These are explicitly windows files and should use crlf
-*.bat      text eol=crlf
-*.cmd      text eol=crlf
-*.ps1      text eol=crlf
+*.bat      text
+*.cmd      text
+*.ps1      text
 
 # Serialisation
 *.json     text

c#/.gitattributes

@@ -1,9 +1,9 @@
 # https://github.com/gitattributes/gitattributes/blob/master/CSharp.gitattributes
 # Auto detect text files and perform LF normalization
-*          text=auto
+*          text=auto eol=lf
 
 *.cs       text diff=csharp
 *.cshtml   text diff=html
 *.csx      text diff=csharp
-*.sln      text eol=crlf
-*.csproj   text eol=crlf
+*.sln      text
+*.csproj   text

fe/.gitattributes

@@ -14,12 +14,12 @@
 ##   Handle line endings automatically for files detected as
 ##   text and leave all files detected as binary untouched.
 ##   This will handle all files NOT defined below.
-*                 text=auto
+*                 text=auto eol=lf
 
 # Source code
 *.bash            text eol=lf
-*.bat             text eol=crlf
-*.cmd             text eol=crlf
+*.bat             text
+*.cmd             text
 *.coffee          text
 *.css             text diff=css
 *.htm             text diff=html
@@ -38,7 +38,7 @@
 *.onlydata        text
 *.php             text diff=php
 *.pl              text
-*.ps1             text eol=crlf
+*.ps1             text
 *.py              text diff=python
 *.rb              text diff=ruby
 *.sass            text