deb: avoid use of [[ in 'rules' file
It's not supported by posix shell, and apparently my build system uses that.
Differential Revision: https://phab.mercurial-scm.org/D10292
--- a/contrib/packaging/debian/rules Tue Mar 30 02:32:30 2021 +0200
+++ b/contrib/packaging/debian/rules Tue Mar 30 15:54:36 2021 -0700
@@ -96,7 +96,7 @@
cp contrib/bash_completion "$(CURDIR)"/debian/mercurial/usr/share/bash-completion/completions/hg
mkdir -p "$(CURDIR)"/debian/mercurial/usr/share/zsh/vendor-completions
cp contrib/zsh_completion "$(CURDIR)"/debian/mercurial/usr/share/zsh/vendor-completions/_hg
- if [[ "$(DEB_HG_CHG_BY_DEFAULT)" -eq 1 ]]; then \
+ if [ "$(DEB_HG_CHG_BY_DEFAULT)" -eq 1 ]; then \
mkdir -p "$(CURDIR)"/debian/mercurial/usr/lib/mercurial; \
mv "$(CURDIR)"/debian/mercurial/usr/bin/hg "$(CURDIR)"/debian/mercurial/usr/lib/mercurial/hg; \
ln -s chg "$(CURDIR)"/debian/mercurial/usr/bin/hg; \