Fix #136

src/dfmt/formatter.d

@@ -763,7 +763,7 @@ private:
             formatAt();
             break;
         case tok!"!":
-            if (peekIs(tok!"is") && !peekBackIsOneOf(false, tok!"(", tok!"="))
+            if ((peekIs(tok!"is") || peekIs(tok!"in")) && !peekBackIsOneOf(false, tok!"(", tok!"="))
                 write(" ");
             goto case;
         case tok!"...":

tests/allman/issue0136.d.ref

@@ -0,0 +1,4 @@
+unittest
+{
+    auto result = name !in aa;
+}

tests/issue0136.d

@@ -0,0 +1,4 @@
+unittest
+{
+	auto result = name !in aa;
+}

tests/otbs/issue0136.d.ref

@@ -0,0 +1,3 @@
+unittest {
+    auto result = name !in aa;
+}