Normalize XML Whitespace

Normalize whitespace in project XML files (e.g. pom.xml), to two-spaces
per indentation level.
Cleanup rewriter error messages for user-defined functions

Change-Id: Ic06e3ff4431508d878e0cc614fbf957887a3c682
Reviewed-on: https://asterix-gerrit.ics.uci.edu/836
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Reviewed-by: abdullah alamoudi <bamousaa@gmail.com>
diff --git a/hyracks-fullstack/hyracks/hyracks-documentation/pom.xml b/hyracks-fullstack/hyracks/hyracks-documentation/pom.xml
index 3210862..956eeda 100644
--- a/hyracks-fullstack/hyracks/hyracks-documentation/pom.xml
+++ b/hyracks-fullstack/hyracks/hyracks-documentation/pom.xml
@@ -29,50 +29,49 @@
   </parent>
 
   <properties>
-      <root.dir>${basedir}/../..</root.dir>
+    <root.dir>${basedir}/../..</root.dir>
   </properties>
 
   <build>
     <plugins>
-    	<plugin>
-    		<groupId>org.apache.maven.doxia</groupId>
-    		<artifactId>doxia-maven-plugin</artifactId>
-    		<version>1.1.3</version>
-    		<executions>
-    		  <execution>
-    		    <phase>package</phase>
-    		    <goals>
-    		      <goal>render-books</goal>
-    		    </goals>
-    		  </execution>
-    		</executions>
-    		<configuration>
-    		  <books>
-    		    <book>
-    		      <directory>src/books/user-guide</directory>
-    		      <descriptor>src/books/user-guide/doxia-descriptor.xml</descriptor>
-    		      <formats>
-    		        <format>
-    		          <id>pdf</id>
-    		        </format>
-    		        <format>
-    		          <id>xhtml</id>
-    		        </format>
-    		      </formats>
-    		    </book>
-    		  </books>
-    		</configuration>
-    	</plugin>
-        <plugin>
-            <groupId>org.apache.maven.plugins</groupId>
-            <artifactId>maven-deploy-plugin</artifactId>
-            <configuration>
-                 <skip>true</skip>
-            </configuration>
-        </plugin>
+      <plugin>
+        <groupId>org.apache.maven.doxia</groupId>
+        <artifactId>doxia-maven-plugin</artifactId>
+        <version>1.1.3</version>
+        <executions>
+          <execution>
+            <phase>package</phase>
+            <goals>
+              <goal>render-books</goal>
+            </goals>
+          </execution>
+        </executions>
+        <configuration>
+          <books>
+            <book>
+              <directory>src/books/user-guide</directory>
+              <descriptor>src/books/user-guide/doxia-descriptor.xml</descriptor>
+              <formats>
+                <format>
+                  <id>pdf</id>
+                </format>
+                <format>
+                  <id>xhtml</id>
+                </format>
+              </formats>
+            </book>
+          </books>
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-deploy-plugin</artifactId>
+        <configuration>
+          <skip>true</skip>
+        </configuration>
+      </plugin>
     </plugins>
 
-
   </build>
   <dependencies>
   </dependencies>
diff --git a/hyracks-fullstack/hyracks/hyracks-documentation/src/books/user-guide/doxia-descriptor.xml b/hyracks-fullstack/hyracks/hyracks-documentation/src/books/user-guide/doxia-descriptor.xml
index e2bab67..10d4ccf 100644
--- a/hyracks-fullstack/hyracks/hyracks-documentation/src/books/user-guide/doxia-descriptor.xml
+++ b/hyracks-fullstack/hyracks/hyracks-documentation/src/books/user-guide/doxia-descriptor.xml
@@ -18,8 +18,8 @@
  !-->
 
 <book xmlns="http://maven.apache.org/BOOK/1.0.0"
- xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
- xsi:schemaLocation="http://maven.apache.org/BOOK/1.0.0 ../../../doxia/doxia-book/target/generated-site/xsd/book-1.0.0.xsd">
+      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+      xsi:schemaLocation="http://maven.apache.org/BOOK/1.0.0 ../../../doxia/doxia-book/target/generated-site/xsd/book-1.0.0.xsd">
   <id>user-guide</id>
   <title>Hyracks User Guide</title>
   <chapters>