remove trailing spaces from description

ghc-safe.spec

@@ -15,11 +15,11 @@ BuildRequires:  ghc-Cabal-devel
 BuildRequires:  ghc-rpm-macros
 
 %description
-Partial functions from the base library, such as head and 
+Partial functions from the base library, such as head and
-!!, modified to return more descriptive error messages, 
+!!, modified to return more descriptive error messages,
-programmer defined error messages, Maybe wrapped results 
+programmer defined error messages, Maybe wrapped results
-and default values. These functions can be used to reduce the 
+and default values. These functions can be used to reduce
-number of unsafe pattern matches in your code.
+the number of unsafe pattern matches in your code.
 
 
 %package devel