remove newline after the dot in chain progress

Co-authored-by: Dan Connolly <[email protected]>

contract/scripts/wait-for-chain.sh

@@ -6,7 +6,7 @@ check_block_pattern() {
     local required_patterns=3  # Number of block patterns we want to see
 
     while IFS= read -r line; do
-        echo "."  # Show the log output
+        echo -n "."  # Show progress
 
         if [[ $line =~ "block-manager: block "[0-9]+" commit" ]]; then
             ((count++))