Taskmgr used a mixture: Sometimes _countof(), sometimes ARRAYSIZE()
and sometimes it calculated the count plain by sizeof(var)/sizeof(TYPE).
Harmonize everywhere to _countof() as it is the shortest solution.
Fix some formatting sins, like placing comments before else-statement.
Shorten the length of some very long line
intentionally *without introducing additional linebreaks* !
Shorten vertical length of some functions to increase their chance to
fit on the screen without scrolling.
Fix wrong indentation level in TaskManagerWndProc().
*.rc: Remove superfluous and redundant comment in all langs
No functional change intended.
