Fixes/warns about false positives for E0932 ``undefined-argument-value`` rule (1160 1161)
If the keyword call contains ``=`` character but is not keyword argument, it may trigger ``E0932`` rule:
Push Buttons C${expression}=
Get Text xpath=(//h4)[5] *= min
Get Text xpath=(//h4)[5] == min
After the fix we are ignoring some of the cases (such as names that would be invalid argument name).
Thanks to Lakitna for providing fix.