t7004: move limited stack prereq to test-lib

diff --git a/t/test-lib-functions.sh b/t/test-lib-functions.sh
index e09e93b38f869b1d2238b927966125b8c2daab6d..1701fe2a06057530d845b91b4fd4cce99b4521a2 100644 (file)
--- a/t/test-lib-functions.sh
+++ b/t/test-lib-functions.sh
@@ -1000,6 +1000,7 @@ test_copy_bytes () {
                        my $s;
                        my $nread = sysread(STDIN, $s, $len);
                        die "cannot read: $!" unless defined($nread);
+                       last unless $nread;
                        print $s;
                        $len -= $nread;
                }