debian_build: fix typo

diff --git a/debian_build.py b/debian_build.py
index bc8f32c44ab82924ae80558ee13424ba786378a5..a2808dd9de00e3043b509ba9a8b3e395557a8a51 100755 (executable)
--- a/debian_build.py
+++ b/debian_build.py
@@ -445,7 +445,7 @@ if __name__ == '__main__':
     * become {jenkins_user}
     * cd into {jenkins_workspace}
     * export environment variables:
-      export {gpb_env} FORCE_SHELL=TRUE
+      export {gbp_env} FORCE_SHELL=TRUE
     * start build:
       {command}
  '''.format(