Fixed typos in stage-release.sh (#47)

build-support/stage-release.sh

diff --git a/build-support/stage-release.sh b/build-support/stage-release.sh
index d435ca2..93b5c41 100755
--- a/build-support/stage-release.sh
+++ b/build-support/stage-release.sh
@@ -25,8 +25,8 @@
     exit 1
 fi
 
-DEST_PATH=$1
-WORKFLOW_ID=$1
+DEST_PATH=$(readlink -f $1)
+WORKFLOW_ID=$2
 
 pushd $(dirname "$0")
 PULSAR_CPP_PATH=$(git rev-parse --show-toplevel)
@@ -34,8 +34,7 @@
 
 mkdir -p $DEST_PATH
 
-cd PULSAR_CPP_PATH
-VERSION=$(cat version.txt | xargs)
+cd $PULSAR_CPP_PATH
 
 build-support/generate-source-archive.sh $DEST_PATH
 build-support/download-release-artifacts.py $WORKFLOW_ID $DEST_PATH