Fixed a typo in the configuration of the maven-release-plugin

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/fileupload/trunk@1475834 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/pom.xml b/pom.xml
index dce4ecc..c9047e9 100644
--- a/pom.xml
+++ b/pom.xml
@@ -228,7 +228,7 @@
       <plugin>
         <artifactId>maven-release-plugin</artifactId>
         <configuration>
-          <prepatationGoals>clean site verify</prepatationGoals>
+          <preparationGoals>clean site verify</preparationGoals>
           <goals>deploy</goals>
         </configuration>
       </plugin>