gcc-4.2.1/libstdc++ patch for locale_facets

While doing test with C++ on uCLibc system, I found a bug into libstdc++ libraries in displaying floating pointer values by using ostream::operator<<(double)
method.
The problem is into locale_facet.tcc, and the attached patch solves it. It affects only libstdc++ configured for uClibc.

Regards,
Carmelo
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