[ONGERRIT] - use indexOfAsciiL and avoid static variable

[Bjoern Michaelsen]

On Sun, Jul 08, 2012 at 07:04:57PM +0200, Christophe JAILLET wrote:
> in 'comphelper\source\misc\logging.cxx' we can read :
>     // (if ::rtl::OUString had an indexOfAscii, we could save those
> ugly statics ...)

Pushed for review to gerrit as:

https://gerrit.libreoffice.org/269

Best,

Bjoern