Document another useful example of using @subchain
commit210763d7b8f7ab735023e2a38254bcf06d1be9cc
authorFaidon Liambotis <paravoid@debian.org>
Wed, 6 Jul 2011 20:58:41 +0000 (6 23:58 +0300)
committerMax Kellermann <max@duempel.org>
Wed, 6 Jul 2011 21:35:24 +0000 (6 23:35 +0200)
tree194b80ad57d9c02dd6cb7bca319c54ccb9dd345e
parentbde48f98321d9260a40de5db149600e89110b002
Document another useful example of using @subchain

Since 2.0.9, expanded substrings are allowed in @subchain names. The
documentation mentions @substr as an example, while @cat("interface_",
$interface) is a far more useful and real-world example.

Add it to the documentation and in the test suite.
doc/ferm.pod
test/misc/subchain-var.ferm [moved from test/misc/subchain-substr.ferm with 73% similarity]
test/misc/subchain-var.result [moved from test/misc/subchain-substr.result with 65% similarity]