fix: usring on 14 rhel7 absolute path instead of STI_SCRIPTS_PATH variable

Author: Costas Papastathis

14/Dockerfile.rhel7

@@ -67,7 +67,7 @@ RUN yum install -y yum-utils && \
 
 # Copy the S2I scripts from the specific language image to $STI_SCRIPTS_PATH
 COPY ./s2i/bin/ $STI_SCRIPTS_PATH
-RUN chmod +x $STI_SCRIPTS_PATH/init-wrapper
+RUN chmod +x /usr/libexec/s2i/init-wrapper
 
 # Copy extra files to the image.
 COPY ./root/ /