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-rw-r--r--lib/bigint.pl2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/bigint.pl b/lib/bigint.pl
index bfd2efa88c..adeb17f28a 100644
--- a/lib/bigint.pl
+++ b/lib/bigint.pl
@@ -74,7 +74,7 @@ sub external { #(int_num_array) return num_str
sub main'bneg { #(num_str) return num_str
local($_) = &'bnorm(@_);
vec($_,0,8) ^= ord('+') ^ ord('-') unless $_ eq '+0';
- s/^H/N/;
+ s/^./N/ unless /^[-+]/; # works both in ASCII and EBCDIC
$_;
}