fix: don't log blank lines output by git to stderr

src/git.zig

@@ -168,7 +168,9 @@ pub fn status(context_: usize) Error!void {
     }.result, struct {
         fn result(_: usize, _: tp.pid_ref, output: []const u8) void {
             var it = std.mem.splitScalar(u8, output, '\n');
-            while (it.next()) |line| std.log.err("{s}: {s}", .{ module_name, line });
+            while (it.next()) |line|
+                if (line.len > 0)
+                    std.log.err("{s}: {s}", .{ module_name, line });
         }
     }.result, exit_null(tag));
 }