Bad `PL` card in K5332187.nec

[StefanBruens]

There is an erroneous ' before the plot card:

necpp/testharness/data/K5332187.nec

Line 17 in 870f110

'PL 3,1,0,3

And Richtanzenne in the header/comment should be Richtantenne.

[StefanBruens]

Dito:

necpp/testharness/data/Gs_8d_bb.nec

Line 26 in 870f110

'PL 3,1,0,3

nec2++ error message:

/usr/bin/nec2++ -i K5332187.nec -o ../out/K5332187.nec.outcpp
                                NEC++ Runtime Error: 
                                FAULTY DATA CARD LABEL AFTER GEOMETRY SECTION.