panel_show_options() deals gracefully with dialog already existing.
tree1de3979eba2616bab284af6f893515cfb3e1ac10
drwxr-xr-x - Choices
-rw-r--r-- 2980 README
-rw-r--r-- 3247 README-es
-rw-r--r-- 761 ROX-Filer.xml
drwxr-xr-x - ROX-Filer
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