[JENKINS-23273] Make some variables space safe by quoting them

rpm/build/SPECS/jenkins.spec

@@ -82,10 +82,10 @@ rm -rf "%{buildroot}"
   # files directive to use JENKINS_USER as owner.
   if [ -f "/etc/sysconfig/%{name}" ]; then
       logger -t %{name}.installer "Found previous config file /etc/sysconfig/%{name}"
-      . /etc/sysconfig/%{name}
-      stat --format=%U /var/cache/%{name} > /tmp/%{name}.installer.cacheowner
-      stat --format=%U /var/log/%{name}  >  /tmp/%{name}.installer.logowner
-      stat --format=%U ${JENKINS_HOME:-%{workdir}}  > /tmp/%{name}.installer.workdirowner
+      . "/etc/sysconfig/%{name}"
+      stat --format=%U "/var/cache/%{name}" > "/tmp/%{name}.installer.cacheowner"
+      stat --format=%U "/var/log/%{name}"  >  "/tmp/%{name}.installer.logowner"
+      stat --format=%U ${JENKINS_HOME:-%{workdir}}  > "/tmp/%{name}.installer.workdirowner"
   else
       logger -t %{name}.installer "No previous config file /etc/sysconfig/%{name} found"
   fi
@@ -96,17 +96,17 @@ rm -rf "%{buildroot}"
 function chownIfNecessary {
   logger -t %{name}.installer "Checking ${2} ownership"
   if [ -f "${1}" ] ; then
-    owner=$(cat $1)
-    rm -f $1
+    owner=$(cat "$1")
+    rm -f "$1"
     logger -t %{name}.installer "Found previous owner of ${2}: ${owner} "
   fi
   if  [ "${owner:-%{name}}" != "${JENKINS_USER:-%{name}}" ] ; then
     logger -t %{name}.installer "Previous owner of ${2} is different than configured JENKINS_USER... Doing a recursive chown of ${2} "
-    chown -R ${JENKINS_USER:-%{name}} $2
+    chown -R ${JENKINS_USER:-%{name}} "$2"
   elif [ "${JENKINS_USER:-%{name}}" != "%{name}" ] ; then
     # User has changed ownership of files and JENKINS_USER, chown only the folder
     logger -t %{name}.installer "Configured JENKINS_USER is different than default... Doing a non recursive chown of ${2} "
-    chown ${JENKINS_USER:-%{name}} $2
+    chown ${JENKINS_USER:-%{name}} "$2"
   else
     logger -t %{name}.installer "No chown needed for ${2} "
   fi
@@ -118,8 +118,8 @@ function chownIfNecessary {
 # the existing semantics
 . /etc/sysconfig/%{name}
 if test x"$JENKINS_INSTALL_SKIP_CHOWN" != "xtrue"; then
-      chownIfNecessary "/tmp/%{name}.installer.cacheowner"  /var/cache/%{name}
-      chownIfNecessary "/tmp/%{name}.installer.logowner"  /var/log/%{name}
+      chownIfNecessary "/tmp/%{name}.installer.cacheowner"  "/var/cache/%{name}"
+      chownIfNecessary "/tmp/%{name}.installer.logowner"  "/var/log/%{name}"
       chownIfNecessary "/tmp/%{name}.installer.workdirowner"  ${JENKINS_HOME:-%{workdir}}
 fi