improve log messages

pbc

@@ -119,12 +119,12 @@ function install_proxmox_backup_client() {
   if $installed && ! $update; then
     local version=$("$PBC" version | head -n 1)
     (( $? != 0 )) && echo "Error running $PBC version: exited with rc=$?" >&2 && return 10
-    echo "Skip installation of proxmox-backup-client, already installed ($version)"
+    echo "Info: skip installation of proxmox-backup-client, already installed ($version)"
     return 0
   fi
 
   if $update && dpkg -S "$PBC" &>/dev/null; then
-    echo "Skip update of proxmox-backup-client, package is managed by the package manager"
+    echo "Info: skip update of proxmox-backup-client, package is managed by the package manager"
     return 0
   fi
 
@@ -142,18 +142,18 @@ function install_proxmox_backup_client() {
   TMPDIR=$(mktemp -d)
   trap cleanup_tmpdir EXIT
 
-  echo "Downloading $PBC_DOWNLOAD_URL/$pkgfile ..."
+  echo "Info: downloading $PBC_DOWNLOAD_URL/$pkgfile ..."
   ! curl -s -o "$TMPDIR/$pkgfile" "$PBC_DOWNLOAD_URL/$pkgfile" && echo "Error downloading file!" >&2 && return 40
 
-  echo "Extracting $pkgfile ..."
+  echo "Info: extracting $pkgfile ..."
   ! dpkg-deb -x "$TMPDIR/$pkgfile" "$TMPDIR/" && echo "Error extracting file!" >&2 && return 50
 
-  echo "Copying proxmox-backup-client static binary to $PBC ..."
+  echo "Info: copying proxmox-backup-client static binary to $PBC ..."
   ! cp "$TMPDIR/usr/bin/proxmox-backup-client" "$PBC" && echo "Error copying binary!" >&2 && return 60
 
   local version=$(pbc-version) || return $?
   $update && action='updated' || action='installed'
-  echo "Successfully $action proxmox-backup-$version"
+  echo "Info: successfully $action proxmox-backup-$version"
 
   cleanup_tmpdir
 }
@@ -394,7 +394,7 @@ case "$action" in
       fi
     fi
 
-    echo "Success!"
+    echo "Info: successfully installed pbc dependencies!"
   ;;
   *)
     "$PBC" "$action" "${args[@]}" || exit $?