[CHANGELOG] Add missing trailing spaces

CHANGELOG.md

@@ -14,12 +14,12 @@ To install release candidates run `[sudo] gem install cocoapods --pre`
 
 ##### Bug Fixes
 
-* Give a meaningful message for the case where there is no available stable version for a pod,
-  and user do not explicitly specify the required version.
+* Give a meaningful message for the case where there is no available stable
+  version for a pod, and there is no explicit version requirement.  
   [Muhammed Yavuz Nuzumlalı](https://github.com/manuyavuz)
   [#4197](https://github.com/CocoaPods/CocoaPods/issues/4197)
 
-* Use watchsimulator when validating pods with the watchOS platform.
+* Use `watchsimulator` when validating pods with the watchOS platform.  
   [Thomas Kollbach](https://github.com/toto)
   [#4130](https://github.com/CocoaPods/CocoaPods/issues/4130)
 
@@ -32,7 +32,7 @@ To install release candidates run `[sudo] gem install cocoapods --pre`
   [#4219](https://github.com/CocoaPods/CocoaPods/issues/4219)
 
 * Podfile generated by `pod init` now specifies iOS 8.0 as the default platform
-  and includes `use_frameworks!` for Swift projects.
+  and includes `use_frameworks!` for Swift projects.  
   [Jamie Evans](https://github.com/JamieREvans)
 
 * Either generate just one pod target or generate it once for each target