such as: printf (_ ("Usage:% s [OPTION] .PATTERN [FILE] .n"), getprogname ());
) in the grep source code
such as: printf (_ ("Usage:% s [OPTION] .PATTERN [FILE] .n"), getprogname ());
) in the grep source code usually use gettext define as _ to use
there is a line on line 43 of system.h that -sharpdefine _ (String) gettext (String)
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