fix lint errors

Author: mriccell

OracleFMWInfrastructure/dockerfiles/14.1.2.0/Dockerfile

@@ -56,7 +56,8 @@ RUN chown oracle:oracle -R /u01
 # Install
 # ------------------------------------------------------------
 USER oracle
-RUN cd /u01 && $JAVA_HOME/bin/jar xf /u01/$FMW_PKG && cd - && \
+WORKDIR /u01
+RUN $JAVA_HOME/bin/jar xf /u01/$FMW_PKG && cd - && \
     $JAVA_HOME/bin/java -jar /u01/$FMW_JAR -silent -responseFile /u01/install.file -invPtrLoc /u01/oraInst.loc -jreLoc $JAVA_HOME -ignoreSysPrereqs -force -novalidation ORACLE_HOME=$ORACLE_HOME INSTALL_TYPE="WebLogic Server" && \
     rm /u01/$FMW_JAR /u01/$FMW_PKG /u01/install.file && \
     rm -rf /u01/oracle/cfgtoollogs