win_lineinfile crashes when both insertafter and insertbefore is given

[phoenikz]

SUMMARY

If supplying both insertafter and insertbefore the module crashes instead of the intended warning

ISSUE TYPE

• Bug Report

COMPONENT NAME

win_lineinfile

STEPS TO REPRODUCE

See summary

EXPECTED RESULTS

Warning about ignored parameter

ACTUAL RESULTS

The full traceback is:

You cannot call a method on a null-valued expression.
At line:102 char:9
+     if (-not $obj.ContainsKey("warnings")) {
+         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (:) [], ParentContainsErrorRecordException
    + FullyQualifiedErrorId : InvokeMethodOnNull

ScriptStackTrace:
at Add-Warning, <No file>: line 102
at <ScriptBlock>, <No file>: line 421
fatal: [10.73.84.77]: FAILED! => {
    "changed": false,
    "msg": "Unhandled exception while executing module: You cannot call a method on a null-valued expression."
}