makefile: use /bin/echo to get consistent results for the escaping

On the buildbot slave machine, we have a different version of zsh which seems
to handle this slightly different with the built-in echo…

diff --git a/Makefile b/Makefile
index b2a39952f4e0a4c2185fa133623450cc8e7d301b..5e82ebc30a7131c04d724ec27343e0674cfd67ef 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -112,7 +112,7 @@ dist: distclean
        # Only copy source code from i3-input
        mkdir i3-${VERSION}/i3-input
        find i3-input -maxdepth 1 -type f \( -name "*.c" -or -name "*.h" -or -name "Makefile" \) -exec cp '{}' i3-${VERSION}/i3-input \;
-       sed -e 's/^GIT_VERSION:=\(.*\)/GIT_VERSION:=$(shell echo '${GIT_VERSION}' | sed 's/\\/\\\\/g')/g;s/^VERSION:=\(.*\)/VERSION:=${VERSION}/g' common.mk > i3-${VERSION}/common.mk
+       sed -e 's/^GIT_VERSION:=\(.*\)/GIT_VERSION:=$(shell /bin/echo '${GIT_VERSION}' | sed 's/\\/\\\\/g')/g;s/^VERSION:=\(.*\)/VERSION:=${VERSION}/g' common.mk > i3-${VERSION}/common.mk
        # Pre-generate a manpage to allow distributors to skip this step and save some dependencies
        $(MAKE) -C man
        cp man/*.1 i3-${VERSION}/man/