Merge pull request #2421 from tarzanek/OpenGrok-2365

OpenGrok-2365 upgrade to latest jflex 1.7.0 , closes #2365

Author: tarzanek

opengrok-indexer/pom.xml

@@ -318,7 +318,7 @@ Portions Copyright (c) 2017-2018, Chris Fraire <[email protected]>.
             <plugin>
                 <groupId>de.jflex</groupId>
                 <artifactId>jflex-maven-plugin</artifactId>
-                <version>1.6.1</version>
+                <version>1.7.0</version>
                 <executions>
                     <execution>
                         <goals>
@@ -328,7 +328,6 @@ Portions Copyright (c) 2017-2018, Chris Fraire <[email protected]>.
                             <lexDefinitions>
                                 <lexDefinition>${basedir}/target/jflex-sources</lexDefinition>
                             </lexDefinitions>
-                            <inputStreamCtor>false</inputStreamCtor>
                         </configuration>
                     </execution>
                 </executions>