correct string formats

[FrazerClews]

I have correct the string formats in some scanf and printf functions

[codecov-io]

Codecov Report

Merging #5456 into master will decrease coverage by <.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #5456      +/-   ##
==========================================
- Coverage   82.85%   82.85%   -0.01%     
==========================================
  Files         134      134              
  Lines      147814   147814              
==========================================
- Hits       122478   122474       -4     
- Misses      25336    25340       +4

Impacted Files	Coverage Δ
src/libvterm/src/parser.c	90.16% <ø> (ø)	⬆️
src/libvterm/src/pen.c	91.01% <ø> (ø)	⬆️
src/ui.c	72.32% <ø> (-0.09%)	⬇️
src/drawline.c	84.64% <0%> (-0.14%)	⬇️
src/gui_gtk_x11.c	57.96% <0%> (-0.1%)	⬇️
src/channel.c	84.22% <0%> (-0.08%)	⬇️
src/os_unix.c	63.55% <0%> (-0.05%)	⬇️
src/terminal.c	81.85% <0%> (+0.03%)	⬆️
src/gui.c	63.63% <0%> (+0.05%)	⬆️
... and 1 more

---

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[brammool]

Thanks, I can include that. Please also send the libvterm changes to the original libvterm maintainers, hopefully we don't divert too much.

[chrisbra]

ping @leonerd

[leonerd]

Hi. Thanks. Turns out only one of those two is still present in latest development source anyway. Shall apply there.