Re-design output to make skimming easier.

- We now always protect the left margin when printing task details
  (including tags) to make it easier to skim down that line.
- Also made the actual summary always follow immediately after the ID,
  to align to that skimmable line.
- Moved the information about the delegatee to the end of the summary,
  next to the tags, and changed the color of the delegatee to make it
  easier to distinguish.
- Added the `-G` option, to allow filtering out issues matching any of
  the provided tags.
- We now allow options to be passed to both the `delegate` and `help`
  command. Any options are ignored, but this allows the use of tools
  like `cmd_shell` which always wrap commands with the pre-given
  options.

src/pitpkg/cliconstants.nim

@@ -1,4 +1,4 @@
-const PIT_VERSION* = "4.20.0"
+const PIT_VERSION* = "4.21.0"
 
 const USAGE* = """Usage:
   pit ( new | add) <summary> [<state>] [options]
@@ -9,12 +9,12 @@ const USAGE* = """Usage:
   pit tag <id>... [options]
   pit untag <id>... [options]
   pit reorder <state> [options]
-  pit delegate <id> <delegated-to>
+  pit delegate <id> <delegated-to> [options]
   pit hide-until <id> <date> [options]
   pit ( delete | rm ) <id>... [options]
   pit add-binary-property <id> <propName> <propSource> [options]
   pit get-binary-property <id> <propName> <propDest> [options]
-  pit help
+  pit help [options]
 
 Options:
 
@@ -38,7 +38,13 @@ Options:
                             separate names. For example: -C ctx1,ctx2
                             Shorthand for '-P context:<ctx>'
 
-  -g, --tags <tags>         Specify tags for an issue.
+  -g, --tags <tags>         Specify tags for an issue. Tags are specified as a
+                            comma-delimited list. For example: -g tag1,tag2
+
+  -G, --excl-tags <tags>    When used with the list command, exclude issues
+                            that contain any of the provided tags. Tags are
+                            specified as a comma-delimited list.
+                            For example: -G tag1,tag2
 
   -T, --today               Limit to today's issues.
 
@@ -166,4 +172,4 @@ Issue Properties:
 
       If present, expected to be a comma-delimited list of text tags. The -g
       option is a short-hand for '-p tags:<tags-value>'.
-"""
+"""