#136 setting LineMatchingPreProcessorCmd on command line overwriting its history

[Simon H.]

When LineMatchingPreProcessorCmd (or PreProcessorCmd) is set on command line , not only the current value but also the history is overwritten. (It is set by the argument --cs "LineMatchingPreProcessorCmd=sed /a/A/")
I would like a command line option which only changes the current value but keeps (or modifies) the history.

Maybe the behavior of other settings is the same. (Probably this: AutoMergeRegExp, DirAntiPattern, FileAntiPattern, FilePattern, HistoryEntryStartRegExp, HistoryEntryStartSortKeyOrder, HistoryStartRegExp, IgnorableCmdLineOptions, IrrelevantMergeCmd, LineMatchingPreProcessorCmd. For Recent*Files I do not care because the current value is set by the positional arguments.)

Suggestons:

• The history could be saved in a separate key (like RecentLineMatchingProProcessorCmd).
• Or the history is kept in the normal key but its original value is be appended to one from the command line.