fix_travis

.travis.yml

@@ -54,7 +54,7 @@ before_install:
   fi
 - curl --retry 5 --connect-timeout 30 --location --remote-header-name --remote-name http://www.ambiera.at/downloads/irrKlang-32bit-1.5.0.zip
 - unzip -q irrKlang-32bit-1.5.0.zip
-- move irrKlang-1.5.0 irrklang
+- mv -f irrKlang-1.5.0 irrklang
 - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then
     cp -rf irrklang/bin/macosx-gcc/*.dylib .;
   fi