#80 WM_CLASS property is missing

[Bert]

mlterm doesn't set the WM_CLASS property. This is required according to ICCCM:
"4.1.2.5. WM_CLASS Property
This property MUST be present when the window leaves the Withdrawn state and may be changed only while the window is in the Withdrawn state."

[Araki Ken]

Thanks for your report.
I revive WM_CLASS property at hg head.
https://bitbucket.org/arakiken/mlterm/get/ba0fb4374d57.zip

(mlterm-3.8.6 removed WM_CLASS property for workaround in order to avoid a problem related to lxde.)