Fix a typo in the development process document.

Reported-by: AnĂ­bal Monsalve Salazar <anibal@debian.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
diff --git a/Documentation/development-process/4.Coding b/Documentation/development-process/4.Coding
index 014aca8..a5a3450 100644
--- a/Documentation/development-process/4.Coding
+++ b/Documentation/development-process/4.Coding
@@ -375,10 +375,10 @@
 justification is solid.
 
 When making an incompatible API change, one should, whenever possible,
-ensure that code which has not been updated is caught by the compiler.  
+ensure that code which has not been updated is caught by the compiler.
 This will help you to be sure that you have found all in-tree uses of that
 interface.  It will also alert developers of out-of-tree code that there is
 a change that they need to respond to.  Supporting out-of-tree code is not
 something that kernel developers need to be worried about, but we also do
-not have to make life harder for out-of-tree developers than it it needs to
-be. 
+not have to make life harder for out-of-tree developers than it needs to
+be.