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A regexp can be preceded by {\fIlang\fP}, thus restricting it to match
-lines of files of the specified language. Use \fBetags --help\fP to obtain
+lines of files of the specified language. Use \fBetags \-\-help\fP to obtain
a list of the recognised languages. This feature is particularly useful inside
\fBregex files\fP. A regex file contains one regex per line. Empty lines,
and those lines beginning with space or tab are ignored. Lines beginning