use internal merge tool when specified for a merge-pattern in hgrc
It is possible to specify in the hgrc file that one of the internal merge
tools (internal:fail, internal:local or internal:other) be used for
performing merges on files matching a given pattern. However, this setting
is not being acted upon (the merge tool is not found). This patch fixes that.
adding base
foo/renamed
renamed
bar/renamed
renamed
baz
.hg/patches/baz