text_combined: jerry hedden drbcqzxlcpanorg bug also evoked following attached usrbinperl use strict use warnings sub isa goto universalisa isa undef 5100 produces use uninitialized value goto goto_bug2pl line 11 commenting use warnings suppresses warning changing undef foo also eliminates warning thu 07 aug 2008 122000 0500 perl 47233 core dump caused goto