Fix version-detect for CC with STLport library
Fix version-detect for CC with STLport library

Correct two typos, one in each of the macros used to detect whether the
STLport library has been #included on Solaris as the native STL.

Note that this PR fixes only the feature detection, several issues remain
to be resolved when trying to build with the library; but this unblocks
the next layer of work.

bloomberg/bde,bloomberg/bde,che2/bde,bloomberg/bde,che2/bde,bloomberg/bde,che2/bde,che2/bde,bloomberg/bde