title: I get wrong output when using diff -u between two textfiles
body: <p>When i use "diff -u" between two txt files where I have only changed two lines it tells me that i've changed every line in the file. Here's the output:</p>
  
  <pre><code> Admin@DESKTOP-9A5CFG4 MINGW64 ~/Desktop/singlediff
  $ diff -u nutty-pancake.txt nutty-pancake-new.txt
  --- nutty-pancake.txt   2016-07-12 16:48:29.465917000 +0200
  +++ nutty-pancake-new.txt       2016-07-12 16:49:10.737818500 +0200
  @@ -1,61 +1,61 @@
  -Nutty Pancake
  -
  -== Ingredients ==
  -
  -* 1 cup all-purpose bleached flour
  -* 2 teaspoons sugar
  -* 1/2 teaspoon salt
  -* 1/3 teaspoon baking powder
  -* 1/4 teaspoon baking soda
  -* 3/4 cup buttermilk
  -* 1/4 cup milk
  -* 1 large egg
  -* 2 tablespoon unsalted butter, melted
  -* 1 teaspoon almond extract
  -* Vegetable oil for brushing griddle
  -
  -== Procedure ==
  -
  -1. Heat a large non-stick skillet or griddle over
  -   low heat while preparing ingredients.
  -
  -2. Mix flour, sugar, salt, baking powder, and baking
  -   soda in medium bowl.
  -
  -3. Microwave buttermilk and milk in a 2-cup Pyrex
  -   measuring cup to room temperature, 20 to 30 seconds.
  -
  -4. Whisk in egg, butter, and almond extract.
  -
  -5. Add wet ingredients to dry ingredients and whisk until
  -   just mixed.
  -
  -6. Return batter to measuring cup, stirring in a teaspoon
  -   or two of water, if necessary, to make a thick, but pourable batter.
  -
  -7. Increase heat to medium and generously brush skillet or griddle with
  -   oil.
  -
  -8. When oil starts to spider, but before it starts to smoke, pour
  -   batter, about 1/4 cup at a time.
  -
  -9. Work in batches, if necessary, to avoid overcrowding.
  -
  -10. When pancake bottoms are golden brown and tops start to bubble,
  -    2 to 3 minutes, flip pancakes.
  -
  -11. Cook until pancakes are golden brown on remaining side.
  -
  -12. Repeat, brushing skillet or griddle with oil.
  -
  -Serve hot.
  -
  -==Source==
  -
  -This recipe originally comes from Wikibooks.
  -
  -http://en.wikibooks.org/w/index.php?oldid=769489
  -(last visited May 19, 2012).
  -
  -Some rights reserved; see http://creativecommons.org/licenses/by-sa/3.0/
  -for more information.
  +Nutty Pancake
  +
  +== Ingredients ==
  +
  +* 1 cup all-purpose bleached flour
  +* 2 teaspoons sugar
  +* 1/2 teaspoon salt
  +* 1/3 teaspoon baking powder
  +* 1/4 teaspoon baking soda
  +* 3/4 cup buttermilk
  +* 1/4 cup milk
  +* 1 large egg
  +* 2 tablespoon unsalted butter, melted
  +* 1 teaspoon walnut extract
  +* Vegetable oil for brushing griddle
  +
  +== Procedure ==
  +
  +1. Heat a large non-stick skillet or griddle over
  +   low heat while preparing ingredients.
  +
  +2. Mix flour, sugar, salt, baking powder, and baking
  +   soda in medium bowl.
  +
  +3. Microwave buttermilk and milk in a 2-cup Pyrex
  +   measuring cup to room temperature, 20 to 30 seconds.
  +
  +4. Whisk in egg, butter, and walnut extract.
  +
  +5. Add wet ingredients to dry ingredients and whisk until
  +   just mixed.
  +
  +6. Return batter to measuring cup, stirring in a teaspoon
  +   or two of water, if necessary, to make a thick, but pourable batter.
  +
  +7. Increase heat to medium and generously brush skillet or griddle with
  +   oil.
  +
  +8. When oil starts to spider, but before it starts to smoke, pour
  +   batter, about 1/4 cup at a time.
  +
  +9. Work in batches, if necessary, to avoid overcrowding.
  +
  +10. When pancake bottoms are golden brown and tops start to bubble,
  +    2 to 3 minutes, flip pancakes.
  +
  +11. Cook until pancakes are golden brown on remaining side.
  +
  +12. Repeat, brushing skillet or griddle with oil.
  +
  +Serve hot.
  +
  +==Source==
  +
  +This recipe originally comes from Wikibooks.
  +
  +http://en.wikibooks.org/w/index.php?oldid=769489
  +(last visited May 19, 2012).
  +
  +Some rights reserved; see http://creativecommons.org/licenses/by-sa/3.0/
  +for more information.
  </code></pre>
  
  <p>I have only changed two occurrences of the word almond to walnut.
  I am using gitbash in windows by the way.</p>