day 19 fix bug
commitaa1f45478e993af2c3e072c42d516e6c2b6f80c7
authorEric Blake <eblake@redhat.com>
Thu, 1 Feb 2024 16:41:49 +0000 (1 10:41 -0600)
committerEric Blake <eblake@redhat.com>
Thu, 1 Feb 2024 16:45:03 +0000 (1 10:45 -0600)
tree93e35ad190b8857a4602431c464666bb2cfa43df
parentd36dbd66329d610a4f5c48e62a830c49ea165f76
day 19 fix bug

My input never hit the 00 case of _fork, but other inputs can, and
would trigger a stack overflow, since none of the built node macros
were expecting an empty argument.
2023/day19.m4