Don't die when yum fails.

Not all yum failures has to be considered
catastrofic failures also because install_package
function should implement the same behavior in Fedora,
CentOS and Ubuntu. Let return the error to be solved at higher
level.

Change-Id: Ia33bb98f47017f6ec00eb3b7261ed42d72efc573
Closes-Bug: #1522590

Author: Federico Ressi

functions-common

@@ -1300,13 +1300,17 @@ function yum_install {
             BEGIN { fail=0 }
             /No package/ { fail=1 }
             { print }
-            END { exit fail }' || \
-                die $LINENO "Missing packages detected"
+            END { exit fail }'
+        result=$?
 
-    # also ensure we catch a yum failure
-    if [[ ${PIPESTATUS[0]} != 0 ]]; then
-        die $LINENO "${YUM:-yum} install failure"
+    if [ $result != 0 ]; then
+        echo $LINENO "Missing packages detected"
+    elif [[ ${PIPESTATUS[0]} != 0 ]]; then
+        # also ensure we catch a yum failure
+        echo $LINENO "${YUM:-yum} install failure"
+        result=1
     fi
+    return $result
 }
 
 # zypper wrapper to set arguments correctly