Fix for #20

[su8]

Shoutout to @lasers mate.

[lasers]

With logs.

conky.config = {out_to_x=false,out_to_console=true}
conky.text = [[${downspeed eno1} // ${if_match ${downspeedf eno1}>50.0}True${else}False${endif}]]

LC_ALL=en_DK.UTF-8 conky -c ~/Conky/conky_downspeed.conf
conky: Bad arguments: '0,0' and '50.0'
conky: compare failed for expression '0,0>50.0'
0B // True
conky: Bad arguments: '1076,6' and '50.0'
conky: compare failed for expression '1076,6>50.0'
1,05M // True
conky: Bad arguments: '2098,4' and '50.0'
conky: compare failed for expression '2098,4>50.0'
2,05M // True
conky: Bad arguments: '1968,2' and '50.0'
conky: compare failed for expression '1968,2>50.0'
1,92M // True
conky: Bad arguments: '1204,9' and '50.0'
conky: compare failed for expression '1204,9>50.0'
1,18M // True
conky: Bad arguments: '258,8' and '50.0'
conky: compare failed for expression '258,8>50.0'
259K // True
conky: Bad arguments: '212,2' and '50.0'
conky: compare failed for expression '212,2>50.0'
212K // True
^Cconky: Bad arguments: '211,9' and '50.0'
conky: compare failed for expression '211,9>50.0'
212K // True

LC_ALL=en_DK.UTF-8 conky -c ~/Conky/conky_downspeed.conf
0B // False
127B // False
73,5K // True
187K // True
237K // True
167K // True
45,2K // False
41,4K // False
^C55,6K // True