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-rw-r--r--src/test/modules/test_misc/t/003_check_guc.pl2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/test/modules/test_misc/t/003_check_guc.pl b/src/test/modules/test_misc/t/003_check_guc.pl
index 3ae4bb1cd9d..f4f2f1121aa 100644
--- a/src/test/modules/test_misc/t/003_check_guc.pl
+++ b/src/test/modules/test_misc/t/003_check_guc.pl
@@ -56,7 +56,7 @@ while (my $line = <$contents>)
# file.
# - Valid configuration options are followed immediately by " = ",
# with one space before and after the equal sign.
- if ($line =~ m/^#?([_[:alpha:]]+) = .*/)
+ if ($line =~ m/^#?([_[:alnum:]]+) = .*/)
{
# Lower-case conversion matters for some of the GUCs.
my $param_name = lc($1);