Log Message:
ugrep: updated to 6.3.0

ugrep v6.3

option --index always enables --recursive
new bash, fish and zsh ugrep-indexer completions
option --hyperlink outputs absolute search paths
update regex DFA cut optimization that was too agressive for some patterns
option -o (--only-matching) with -ABC context now also supports multi-line \ 
pattern matching with \n (newline) in regex patterns

Note: again extensively tested with random (fuzzed) patterns to verify the match \ 
algorithms and optimizations.