[nobug] Change tycho-version POM variable to tychoVersion

Change-Id: I476355d19145725fca7f0cc96e1e61ad8f2db9de

plugins/org.eclipse.wst.server.preview/jetty/pom.xml

diff --git a/plugins/org.eclipse.wst.server.preview/jetty/pom.xml b/plugins/org.eclipse.wst.server.preview/jetty/pom.xml
index 198dfa5..a087894 100644
--- a/plugins/org.eclipse.wst.server.preview/jetty/pom.xml
+++ b/plugins/org.eclipse.wst.server.preview/jetty/pom.xml
@@ -111,7 +111,7 @@
           <plugin>
             <groupId>org.eclipse.tycho</groupId>
             <artifactId>tycho-p2-repository-plugin</artifactId>
-            <version>${tycho-version}</version>
+            <version>${tychoVersion}</version>
             <executions>
               <execution>
                 <id>update</id>