usage: Correct "npm COMMAND help" to "npm help COMMAND"

PR-URL: #2855
Credit: @dwardu
Close: #2855
Reviewed-by: @ruyadorno, @darcyclarke

Author: dwardu

lib/base-command.js

@@ -19,7 +19,7 @@ class BaseCommand {
 
     // Mostly this just appends aliases, this could be more clear
     usage = usageUtil(this.constructor.name, usage)
-    usage = `${usage}\n\nRun "npm ${this.constructor.name} help" for more info`
+    usage = `${usage}\n\nRun "npm help ${this.constructor.name}" for more info`
     return usage
   }
 

tap-snapshots/test-lib-dist-tag.js-TAP.test.js

@@ -15,7 +15,7 @@ npm dist-tag ls [<pkg>]
 
 alias: dist-tags
 
-Run "npm dist-tag help" for more info
+Run "npm help dist-tag" for more info
 `
 
 exports[`test/lib/dist-tag.js TAP add missing pkg name > should exit usage error message 1`] = `
@@ -28,7 +28,7 @@ npm dist-tag ls [<pkg>]
 
 alias: dist-tags
 
-Run "npm dist-tag help" for more info
+Run "npm help dist-tag" for more info
 `
 
 exports[`test/lib/dist-tag.js TAP add new tag > should return success msg 1`] = `
@@ -50,7 +50,7 @@ npm dist-tag ls [<pkg>]
 
 alias: dist-tags
 
-Run "npm dist-tag help" for more info
+Run "npm help dist-tag" for more info
 `
 
 exports[`test/lib/dist-tag.js TAP ls in current package > should list available tags for current package 1`] = `
@@ -69,7 +69,7 @@ npm dist-tag ls [<pkg>]
 
 alias: dist-tags
 
-Run "npm dist-tag help" for more info
+Run "npm help dist-tag" for more info
 `
 
 exports[`test/lib/dist-tag.js TAP ls on missing package > should log no dist-tag found msg 1`] = `
@@ -118,7 +118,7 @@ npm dist-tag ls [<pkg>]
 
 alias: dist-tags
 
-Run "npm dist-tag help" for more info
+Run "npm help dist-tag" for more info
 `
 
 exports[`test/lib/dist-tag.js TAP remove non-existing tag > should log error msg 1`] = `

tap-snapshots/test-lib-publish.js-TAP.test.js

@@ -11,5 +11,5 @@ npm publish
 Usage:
 npm publish [<folder>] [--tag <tag>] [--access <public|restricted>] [--dry-run]
 
-Run "npm publish help" for more info
+Run "npm help publish" for more info
 `