remove trailing .'s from summaries

ghc-utf8-string.spec

@@ -9,7 +9,7 @@
 Name:           ghc-%{pkg_name}
 Version:        0.3.5
 Release:        3%{?dist}
-Summary:        Haskell UTF8 layer for IO and Strings.
+Summary:        Haskell UTF8 layer for IO and Strings
 
 Group:          Development/Libraries
 License:        BSD
@@ -32,7 +32,7 @@ for encoding UTF8 strings to Word8 lists and back, and for reading and writing
 UTF8 without truncation. 
 
 %package devel
-Summary:        Haskell UTF8 layer for IO and Strings.
+Summary:        Haskell UTF8 layer for IO and Strings
 Group:          Development/Libraries
 Requires:       ghc = %{ghc_version}
 Requires(post): ghc = %{ghc_version}