Thread: libpqtypes - libpqtypes: change return of PQgeterror from a const char*

Log Message:
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change return of PQgeterror from a const char* to a char*.  Having it be const served no purpose.

Modified Files:
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    libpqtypes/docs/man3:
        PQgeterror.3 (r1.6 -> r1.7)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/libpqtypes/libpqtypes/docs/man3/PQgeterror.3.diff?r1=1.6&r2=1.7)
    libpqtypes/src:
        error.c (r1.18 -> r1.19)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/libpqtypes/libpqtypes/src/error.c.diff?r1=1.18&r2=1.19)