document Alloc() vs returning bool (part of bug 1933693)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@53030 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/string.h

@@ -1729,7 +1729,7 @@ public:
   // raw access to string memory
     // ensure that string has space for at least nLen characters
     // only works if the data of this string is not shared
-  bool Alloc(size_t nLen) { reserve(nLen); /*return capacity() >= nLen;*/ return true; }
+  bool Alloc(size_t nLen) { reserve(nLen); return capacity() >= nLen; }
     // minimize the string's memory
     // only works if the data of this string is not shared
   bool Shrink();