Provide a "--conduit-uri" override for testing, and tweak some documentation.

Summary:

Test Plan:

Reviewers:

CC:

scripts/arcanist.php

@@ -31,6 +31,7 @@ phutil_require_module('arcanist', 'workingcopyidentity');
 phutil_require_module('arcanist', 'repository/api/base');
 
 $config_trace_mode = false;
+$force_conduit = null;
 $args = array_slice($argv, 1);
 $load = array();
 $matches = null;
@@ -46,6 +47,9 @@ foreach ($args as $key => $arg) {
   } else if (preg_match('/^--load-phutil-library=(.*)$/', $arg, $matches)) {
     unset($args[$key]);
     $load['?'] = $matches[1];
+  } else if (preg_match('/^--conduit-uri=(.*)$/', $arg, $matches)) {
+    unset($args[$key]);
+    $force_conduit = $matches[1];
   }
 }
 
@@ -135,7 +139,12 @@ try {
 
   $set_guid = false;
   if ($need_conduit) {
-    $conduit_uri  = $working_copy->getConduitURI();
+
+    if ($force_conduit) {
+      $conduit_uri = $force_conduit;
+    } else {
+      $conduit_uri = $working_copy->getConduitURI();
+    }
     if (!$conduit_uri) {
       throw new ArcanistUsageException(
         "No Conduit URI is specified in the .arcconfig file for this project. ".

src/workflow/help/ArcanistHelpWorkflow.php

@@ -157,6 +157,14 @@ EOTEXT
       __--no-ansi__
           Output in plain ASCII text only, without color or style.
 
+      __--load-phutil-library=/path/to/library__
+          Ignore libraries listed in .arcconfig and explicitly load specified
+          libraries instead. Mostly useful for Arcanist development.
+
+      __--conduit-uri=...__
+          Ignore configured Conduit URI and use an explicit one instead. Mostly
+          useful for Arcanist development.
+
 
 EOTEXT
     );

src/workflow/mark-committed/ArcanistMarkCommittedWorkflow.php

@@ -26,7 +26,7 @@ class ArcanistMarkCommittedWorkflow extends ArcanistBaseWorkflow {
           to do this; arc commit (svn), arc amend (git) or commit hooks in the
           master remote repository should do it for you. However, if these
           mechanisms have failed for some reason you can use this command to
-          manually change a revision status from "accepted" to "committed".
+          manually change a revision status from "Accepted" to "Committed".
 EOTEXT
       );
   }

src/workflow/shell-complete/ArcanistShellCompleteWorkflow.php

@@ -24,7 +24,6 @@ class ArcanistShellCompleteWorkflow extends ArcanistBaseWorkflow {
           Supports: bash, etc.
           Implements shell completion. To use shell completion, source the
           appropriate script from 'resources/shell/' in your .shellrc.
-
 EOTEXT
       );
   }

src/workflow/svn-hook-pre-commit/ArcanistSvnHookPreCommitWorkflow.php

@@ -22,7 +22,9 @@ class ArcanistSvnHookPreCommitWorkflow extends ArcanistBaseWorkflow {
     return phutil_console_format(<<<EOTEXT
       **svn-hook-pre-commit** __repository__ __transaction__
           Supports: svn
-          You can install this as an SVN pre-commit hook.
+          You can install this as an SVN pre-commit hook. For more information,
+          see the article "Installing Arcanist SVN Hooks" in the Arcanist
+          documentation.
 EOTEXT
       );
   }