Make output when downloading qemu images less verbose (#2217)

tests/qemu-tests/download_images.sh

@@ -14,7 +14,7 @@ download() {
     hash_new=$(grep "${file}" "${OUT_DIR}/hashsums.txt")
     # only download file if it doesn't exist or its hashsum has changed
     if [ ! -f "${OUT_DIR}/${file}" ] || [ "${hash_new}" != "${hash_old}" ]; then
-        wget "${URL}/${file}" -O "${OUT_DIR}/${file}"
+        wget --no-verbose --show-progress --progress=bar:force:noscroll "${URL}/${file}" -O "${OUT_DIR}/${file}"
     fi
 }
 
@@ -22,7 +22,7 @@ if [ -f "${OUT_DIR}/hashsums.txt" ]; then
     mv -f "${OUT_DIR}/hashsums.txt" "${OUT_DIR}/hashsums.txt.old"
 fi
 
-wget "${URL}/hashsums.txt" -O "${OUT_DIR}/hashsums.txt"
+wget --no-verbose --show-progress --progress=bar:force:noscroll "${URL}/hashsums.txt" -O "${OUT_DIR}/hashsums.txt"
 
 while read -r hash file; do
     echo "Downloading ${file}..."