allow return code 0 for successful pkg install

Andreas Wacknitz

2022-06-05 3c3d077095c280c0ce04bc00feacc562d7ab7fc3

allow return code 0 for successful pkg install

 make-rules/environment.mk

@@ -53,6 +53,7 @@
        while true ; do \
          $(PFEXEC) /usr/bin/pkg install --accept -v $(REQUIRED_PACKAGES:%=/%) ; \
          RETVAL=$$? ; \
          [ $$RETVAL -eq 0 ] && break; \
          [ $$RETVAL -eq 4 ] && break; \
          [ $$RETVAL -ne 7 ] && echo "pkg install returned $$RETVAL" && exit 1; \
          sleep 10; \