Cannot translate if first word contains "file"

[if1live]

$ trans "file"
gawk: cmd. line:1263: fatal: expression for `<' redirection has null string value

$ trans "file name"
gawk: cmd. line:1263: fatal: expression for `<' redirection has null string value

$ trans "filename"
gawk: cmd. line:1263: fatal: expression for `<' redirection has null string value

$ trans -b "a file"
파일 

If first word of context contains "file", error occur.

environment

Translate Shell 0.8.22.3

gawk (GNU Awk)        4.1.1
fribidi (GNU FriBidi) [NOT INSTALLED]
User Language         Korean (한국어)

[soimort]

Thanks for filing the bug!