cubicweb #2106415 "man strftime" is not appropriate documentation [resolved]

The ui settings point at "man strftime" for documentation about the date/datetime formats. Users may not be familiar with man, or not be using unix.

prioritynormal
typebug
done in3.14.1
load left0.000
closed by#8311cc3b472a Link to python docs about strftime instead of pointing at "man" (closes #2106415)