util.dependencies: Make the commands line up properly in the "missing dependency...

diff --git a/util/dependencies.lua b/util/dependencies.lua
index 5b07072f1350ab05b8663b869ac348e4bb2db360..cbdecc10f6c4c0a827599279cbf85005b72fe659 100644 (file)
--- a/util/dependencies.lua
+++ b/util/dependencies.lua
@@ -17,8 +17,12 @@ local function missingdep(name, sources, msg)
        print("Prosody was unable to find "..tostring(name));
        print("This package can be obtained in the following ways:");
        print("");
-       for k,v in pairs(sources) do
-               print("", k, v);
+       local longest_platform = 0;
+       for platform in pairs(sources) do
+               longest_platform = math.max(longest_platform, #platform);
+       end
+       for platform, source in pairs(sources) do
+               print("", platform..":"..(" "):rep(4+longest_platform-#platform)..source);
        end
        print("");
        print(msg or (name.." is required for Prosody to run, so we will now exit."));