Import the salt/formulas.jinja template with context

This is only needed for salt versions older than 2014.7 that do not
define the global "salt" variable in such context.

salt/files/master.d/_defaults.conf

@@ -12,7 +12,7 @@
 #{{ configname }}: {{ default_value }}
 {%- endif -%}
 {%- endmacro -%}
-{%- from 'salt/formulas.jinja' import file_roots, formulas -%}
+{%- from 'salt/formulas.jinja' import file_roots, formulas with context -%}
 ##### Primary configuration settings #####
 ##########################################
 # This configuration file is used to manage the behavior of the Salt Master

salt/files/minion.d/_defaults.conf

@@ -12,7 +12,7 @@
 #{{ configname }}: {{ default_value }}
 {%- endif -%}
 {%- endmacro -%}
-{%- from 'salt/formulas.jinja' import file_roots, formulas -%}
+{%- from 'salt/formulas.jinja' import file_roots, formulas with context -%}
 ##### Primary configuration settings #####
 ##########################################