Fix computation of spicyz path from zkg store.

In cedb9d5 we introduced a fallback
mechanism for when `spicyz` was not found in `PATH`. This patch fixes an
incorrect omission in that change.
f

zkg.meta

@@ -3,5 +3,5 @@ summary = Spicy-based analyzer for the DNS protocol
 description = Spicy-based analyzer for the DNS protocol.
 script_dir = analyzer
 plugin_dir = build/spicy-modules
-build_command = mkdir -p build && cd build && SPICYZ=$(command -v spicyz || %(package_base)s/spicy-plugin/build/bin/spicyz) cmake .. && cmake --build .
+build_command = mkdir -p build && cd build && SPICYZ=$(command -v spicyz || echo %(package_base)s/spicy-plugin/build/bin/spicyz) cmake .. && cmake --build .
 test_command = cd tests && PATH=$(zkg config plugin_dir)/packages/spicy-plugin/bin:$PATH btest -d -j $(nproc)