Avoid POSIX character classes for compatibility with mawk.
@@ -260,8 +260,8 @@ trim_file() {
FILENAME="$1"
# Find line number of first and last non-blank lines
- FIRST_LINE="`awk '/[^[:space:]]/ {print NR; exit}' "$FILENAME"`"
- LAST_LINE="`awk '/[^[:space:]]/ {last=NR} END {print last}' "$FILENAME"`"
+ FIRST_LINE="`awk '/[^\t ]/ {print NR; exit}' "$FILENAME"`"
+ LAST_LINE="`awk '/[^\t ]/ {last=NR} END {print last}' "$FILENAME"`"
# Print the contents of the file between those lines, inclusive
awk "NR==$FIRST_LINE,NR==$LAST_LINE" "$FILENAME"
