Merge pull request #3331 from dotty-staging/fix-cygwin

fix version check in Cygwin

Author: allanrenucci

dist/bin/common

@@ -62,7 +62,7 @@ if [ ! -x "$JAVACMD" ] ; then
 fi
 
 # parses 1.7, 1.8, 9, etc out of java version "1.8.0_91"
-JAVA_VERSION=$("$JAVACMD" -version 2>&1 | grep ' version "' | sed 's/.*version "\([0-9]*\)\(\.[0-9]*\)\{0,1\}\(.*\)*"/\1\2/; 1q')
+JAVA_VERSION=$("$JAVACMD" -version 2>&1 | grep ' version "' | tr '\r' '\n' | sed 's/.*version "\([0-9]*\)\(\.[0-9]*\)\{0,1\}\(.*\)*"/\1\2/; 1q')
 
 if [ "$JAVA_VERSION" != "1.8" ] ; then
   echo "Error: Java 8 is required, actual $JAVA_VERSION"