The "test-looks-like-utf" command:
Usage:  fossil test-looks-like-utf FILENAME
Options:
- -n|--limit N
 - Repeat looks-like function N times, for performance measurement. Default = 1
 - --utf8
 - Ignoring BOM and file size, force UTF-8 checking
 - --utf16
 - Ignoring BOM and file size, force UTF-16 checking
 
FILENAME is the name of a file to check for textual content in the UTF-8 and/or UTF-16 encodings.
