Fix typo in help panel path config

[ManuelHentschel]

#454 #455
Fix typo in accessing config entry r.helpPanel.rpath which caused this setting to be ignored.

[renkun-ken]

Thanks for the fix! It looks like r.helpPanel.rpath does not default to r.rterm.* but getRpath(), which is inconsistent with the description

Defaults to r.rterm.XXX.

Could you confirm that and update the description if it is the case?

[ManuelHentschel]

Thanks for the fix! It looks like r.helpPanel.rpath does not default to r.rterm.* but getRpath(), which is inconsistent with the description

Defaults to r.rterm.XXX.

Could you confirm that and update the description if it is the case?

I used that description, since getRpath() will read the corresponding r.rterm.xxx setting first and only be different from accessing the setting directly if it needs to fall back to a different method

[ManuelHentschel]

But I'd suggest skipping the r.rterm.xxx fallback and instead use the fallback methods used in getRpath() directly

[renkun-ken]

Yes, that's exactly what I meant. Forgot that getRpath reads config first.

[renkun-ken]

LGTM

Tested on macOS and it works nicely now.