bold and red dirs. Closes #10

shfm

@@ -226,6 +226,7 @@ line_print() {
 line_format() {
     file_escape "$1"
     esc EL0
+    [ -d "$1" ] && esc SGR 1 31
     printf %s "$safe"
     [ -d "$1" ] && printf /
     esc SGR