SystemTools: Fix spelling of "succeeded" in comments

Change-Id: I1375f56aacc561714d2cb0095478a763079ee657

SystemTools.hxx.in

@@ -703,13 +703,13 @@ public:
 
   /**
    * Create a symbolic link if the platform supports it.  Returns whether
-   * creation succeded.
+   * creation succeeded.
    */
   static bool CreateSymlink(const std::string& origName, const std::string& newName);
 
   /**
    * Read the contents of a symbolic link.  Returns whether reading
-   * succeded.
+   * succeeded.
    */
   static bool ReadSymlink(const std::string& newName, std::string& origName);