Fixup path

Specify correct location of pre-merge software to stage.
Runs commands without -l (login) so the environment is preserved.

Change-Id: I226cdfd62bcb40f65dbe5977d1a4b78d2e5fe061
Signed-off-by: beierlm <mark.beierl@canonical.com>
diff --git a/Dockerfile b/Dockerfile
index c3297da..5717b7a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -26,6 +26,8 @@
 
 FROM ubuntu:18.04
 ENV LANG en_IN.UTF-8
+ENV LC_ALL en_IN.UTF-8
+ENV LANGUAGE en_IN.UTF-8
 
 RUN DEBIAN_FRONTEND=noninteractive apt-get update && \
     DEBIAN_FRONTEND=noninteractive apt-get -y install \