[FORMAT] Fix of output text overlap in console when finished (#3177)

At the end of the format operation, text in console got overwritten and leftovers from previous line remained displayed.

base/system/format/format.c

@@ -562,6 +562,7 @@ int wmain(int argc, WCHAR *argv[])
     FormatEx(RootDirectory, media, FileSystem, Label, QuickFormat,
              ClusterSize, FormatExCallback);
     if (Error) return -1;
+    ConPuts(StdOut, L"\n");
     ConResPuts(StdOut, STRING_FMT_COMPLETE);
 
     //