Log Message:
textproc/hgrep: update to 0.3.7

v0.3.7 - 21 Apr 2024
 - Support many text encodings. Previously only UTF-8 was supported. (#21)
   - Add --encoding (-E) command line option to specify file encoding of matched \ 
files. For example, the following command searches files encoded in Shift JIS.

      hgrep --encoding sjis pattern path/to/dir

   - Detect file encodings from BOM. hgrep can automatically detect UTF-16LE, \ 
UTF-16BE, and UTF-8 if BOM exists in the file.
 - Fix some syntax detection fails when BOM is inserted at the head of file. (#20)
 - Improve performance by removing redundant read system calls on detecting syntax.
 - Improve error messages when failing to read files