Fix array indentation as argument

src/dfmt/formatter.d

@@ -642,6 +642,9 @@ private:
         }
         else if (p == tok!"[" && config.dfmt_keep_line_breaks == OptionalBoolean.t)
         {
+            if (peekBack2Is(tok!"(")) {
+                indents.pop();
+            }
             IndentStack.Details detail;
 
             detail.wrap = false;

tests/allman/keep_break_in_array_arg.d.ref

@@ -0,0 +1,6 @@
+unittest
+{
+    f([
+        x
+    ]);
+}

tests/keep_break_in_array_arg.d

@@ -0,0 +1,6 @@
+unittest
+{
+    f([
+        x
+    ]);
+}

tests/keep_break_in_array_chain.args

@@ -0,0 +1 @@
+--keep_line_breaks=true

tests/knr/keep_break_in_array_arg.d.ref

@@ -0,0 +1,5 @@
+unittest {
+    f([
+        x
+    ]);
+}

tests/otbs/keep_break_in_array_arg.d.ref

@@ -0,0 +1,5 @@
+unittest {
+    f([
+        x
+    ]);
+}