project.xml : make sure zproject building itself does not break due to licensing, if defaults for check_license_years behavior evolve in the future

Author: jimklimov

README.md

@@ -232,6 +232,7 @@ zproject's `project.xml` contains an extensive description of the available conf
 <project script = "zproject.gsl" name = "zproject"
     email = "zeromq-dev@lists.zeromq.org"
     license = "MPLv2"
+    check_license_years = "0"
     url = "https://github.com/zeromq/zproject"
     repository = "https://github.com/zeromq/zproject">
 

project.xml

@@ -55,6 +55,7 @@
 <project script = "zproject.gsl" name = "zproject"
     email = "zeromq-dev@lists.zeromq.org"
     license = "MPLv2"
+    check_license_years = "0"
     url = "https://github.com/zeromq/zproject"
     repository = "https://github.com/zeromq/zproject">