cmd_runner module utils: fix bug when argument spec has implicit type (#6968)

* cmd_runner module utils: fix bug when argument spec has implicit type

* add changelog frag

tests/integration/targets/cmd_runner/library/cmd_echo.py

@@ -26,6 +26,7 @@ def main():
             arg_values=dict(type="dict", default={}),
             check_mode_skip=dict(type="bool", default=False),
             aa=dict(type="raw"),
+            tt=dict(),
         ),
         supports_check_mode=True,
     )

tests/integration/targets/cmd_runner/vars/main.yml

@@ -121,3 +121,20 @@ cmd_echo_tests:
       - test_result.rc == None
       - test_result.out == None
       - test_result.err == None
+
+  - name: set aa and tt value
+    arg_formats:
+      aa:
+        func: as_opt_eq_val
+        args: [--answer]
+      tt:
+        func: as_opt_val
+        args: [--tt-arg]
+    arg_order: 'aa tt'
+    arg_values:
+      tt: potatoes
+    aa: 11
+    assertions:
+      - test_result.rc == 0
+      - test_result.out == "-- --answer=11 --tt-arg potatoes\n"
+      - test_result.err == ""