Use module docstring for argparse help.

Change-Id: Idc72987bd5652f0b2d666eedeb5ec51750da6929

1 files changed, 4 insertions, 1 deletions

diff --git a/build.py b/build.py
index 34cc19f5b..ddafc2166 100755
--- a/build.py
+++ b/build.py
@@ -14,9 +14,11 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
+"""Builds GCC for Android."""
 from __future__ import print_function
 
 import argparse
+import inspect
 import multiprocessing
 import os
 import subprocess
@@ -51,7 +53,8 @@ ALL_TOOLCHAINS = (
 class ArgParser(argparse.ArgumentParser):
     def __init__(self):
         super(ArgParser, self).__init__(
-            description='Builds GCC for Android.')
+            description=inspect.getdoc(sys.modules[__name__]),
+            formatter_class=argparse.RawDescriptionHelpFormatter)
 
         self.add_argument(
             '--host', choices=('darwin', 'linux', 'windows', 'windows64'),