install-gosu-binary.sh: install sudo wrapper when executing the script

common.docker

@@ -47,7 +47,6 @@ RUN \
 
 COPY imagefiles/cmake.sh /usr/local/bin/cmake
 COPY imagefiles/ccmake.sh /usr/local/bin/ccmake
-COPY imagefiles/sudo.sh /usr/bin/sudo
 
 RUN if [ -e /opt/python/cp35-cp35m/bin/python ]; then \
     : nothing to do here since it is updated by manylinux-common/install-python-packages.sh ; \

imagefiles/install-gosu-binary.sh

@@ -40,3 +40,15 @@ chmod +x /usr/local/bin/gosu
 
 # verify that the binary works
 gosu nobody true
+
+
+cat << EOF >> /usr/bin/sudo
+#!/bin/sh
+
+# Emulate the sudo command
+
+exec gosu root:root "\$@"
+
+EOF
+
+chmod +x /usr/bin/sudo

imagefiles/sudo.sh

@@ -1,5 +0,0 @@
-#!/bin/sh
-
-# Emulate the sudo command
-
-exec gosu root:root "$@"