Parameterise command line option defaults, so translations are independent of them
Bugfix: Remove default from -zapwallettxes description (inaccurate)
Merge pull request #5076

c0195b1 Bugfix: Remove default from -zapwallettxes description (inaccurate) (Luke Dashjr)
0a08aa8 Parameterise command line option defaults, so translations are independent of them (Luke Dashjr)
qt: English translation update after 0a08aa8
doc: add headers first backwards compat warning
qt: small English language updates from translators

More friendly language, use placeholders where possible