ash.c: speedup ${s:} substring (no quotes)

This trivial patch makes ${s:...} at least as fast as ${s#??..}
in simple tests. It's probably faster for longer substrings,
but then one wouldn't use ${s#"1024???s"} anyway -
one would switch away from sh.

function                                             old     new   delta
subevalvar                                          1457    1503     +46

Signed-off-by: Alin Mr <almr.oss@outlook.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

0 files changed, 0 insertions, 0 deletions