Fix comment

Change-Id: I73ec0af22c19674c4b120a68c63710a1b46928ae
Reviewed-on: https://gerrit.libreoffice.org/51623Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>
Tested-by: Mike Kaganski <mike.kaganski@collabora.com>

shell/source/backends/wininetbe/wininetbackend.cxx

@@ -125,8 +125,8 @@ WinInetBackend::WinInetBackend()
                 DWORD err = GetLastError();
                 if (err == ERROR_INSUFFICIENT_BUFFER)
                 {
-                    // allocate sufficient space on the heap
-                    // insufficient space on the heap results
+                    // allocate sufficient space on the stack
+                    // insufficient space on the stack results
                     // in a stack overflow exception, we assume
                     // this never happens, because of the relatively
                     // small amount of memory we need