Fix single line macro definition

src/runestone.jl

@@ -1347,7 +1347,7 @@ function indent_function_or_macro(ctx::Context, node::Node)
         any_kid_changed = true
     end
     # Fifth node is the closing end keyword
-    end_idx = block_idx + 1
+    end_idx = findnext(x -> kind(x) === K"end", kids, block_idx + 1)::Int
     end_node = kids[end_idx]
     @assert is_leaf(end_node) && kind(end_node) === K"end"
     if !has_tag(end_node, TAG_DEDENT)

test/runtests.jl

@@ -454,6 +454,7 @@ end
         # macro-end
         @test format_string("macro f()\n$(sp)x\n$(sp)end") ==
             "macro f()\n    x\nend"
+        @test format_string("macro f() x end") == "macro f() x end"
         # let-end
         @test format_string("let a = 1\n$(sp)x\n$(sp)end") == "let a = 1\n    x\nend"
         @test format_string("let\n$(sp)x\n$(sp)end") == "let\n    x\nend"