format 'pom.xml' code style (#2257)

docs/pom.xml

 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+	 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
@@ -16,14 +16,14 @@
 		<main.basedir>${basedir}/..</main.basedir>
 		<docs.whitelisted.branches>1.0.x,1.1.x,1.3.x,2.0.x</docs.whitelisted.branches>
 	</properties>
- 	<build>
+	<build>
 		<plugins>
-	        <plugin>
-		      <artifactId>maven-deploy-plugin</artifactId>
-		      <configuration>
-		        <skip>true</skip>
-		      </configuration>
-	        </plugin>
+			<plugin>
+				<artifactId>maven-deploy-plugin</artifactId>
+				<configuration>
+					<skip>true</skip>
+				</configuration>
+			</plugin>
 		</plugins>
 	</build>
 	<profiles>

pom.xml

@@ -22,7 +22,7 @@
 	<properties>
 		<bintray.package>netflix</bintray.package>
 		<main.basedir>${basedir}</main.basedir>
-        <netty.version>4.0.27.Final</netty.version>
+		<netty.version>4.0.27.Final</netty.version>
 		<jackson.version>2.7.3</jackson.version>
 		<spring-cloud-commons.version>1.3.0.BUILD-SNAPSHOT</spring-cloud-commons.version>
 		<spring-cloud-config.version>1.4.0.BUILD-SNAPSHOT</spring-cloud-config.version>
@@ -102,8 +102,8 @@
 				<groupId>org.springframework.cloud</groupId>
 				<artifactId>spring-cloud-stream-dependencies</artifactId>
 				<version>${spring-cloud-stream.version}</version>
-                <type>pom</type>
-                <scope>import</scope>
+				<type>pom</type>
+				<scope>import</scope>
 			</dependency>
 			<dependency>
 				<groupId>io.netty</groupId>

spring-cloud-starter-netflix/spring-cloud-starter-netflix-eureka-server/pom.xml

 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-  <modelVersion>4.0.0</modelVersion>
-  <parent>
-    <groupId>org.springframework.cloud</groupId>
-    <artifactId>spring-cloud-starter-netflix</artifactId>
-    <version>1.4.0.BUILD-SNAPSHOT</version>
-  </parent>
-  <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
+	<modelVersion>4.0.0</modelVersion>
+	<parent>
+		<groupId>org.springframework.cloud</groupId>
+		<artifactId>spring-cloud-starter-netflix</artifactId>
+		<version>1.4.0.BUILD-SNAPSHOT</version>
+	</parent>
+	<artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
 	<name>Spring Cloud Starter Netflix Eureka Server</name>
 	<description>Spring Cloud Starter Netflix Eureka Server</description>
 	<url>https://projects.spring.io/spring-cloud</url>

spring-cloud-starter-netflix/spring-cloud-starter-netflix-turbine-amqp/pom.xml

 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-  <modelVersion>4.0.0</modelVersion>
-  <parent>
-    <groupId>org.springframework.cloud</groupId>
-    <artifactId>spring-cloud-starter-netflix</artifactId>
-    <version>1.4.0.BUILD-SNAPSHOT</version>
-  </parent>
-  <artifactId>spring-cloud-starter-netflix-turbine-amqp</artifactId>
-  <name>Spring Cloud Starter Netflix Turbine AMQP</name>
+	<modelVersion>4.0.0</modelVersion>
+	<parent>
+		<groupId>org.springframework.cloud</groupId>
+		<artifactId>spring-cloud-starter-netflix</artifactId>
+		<version>1.4.0.BUILD-SNAPSHOT</version>
+	</parent>
+	<artifactId>spring-cloud-starter-netflix-turbine-amqp</artifactId>
+	<name>Spring Cloud Starter Netflix Turbine AMQP</name>
 	<description>Spring Cloud Starter Netflix Turbine AMQP (deprecated, please use spring-cloud-starter-netflix-turbine-stream)</description>
 	<url>https://projects.spring.io/spring-cloud</url>
 	<organization>