(Fdelete_frame): Add parens for clarity.

diff --git a/src/frame.c b/src/frame.c
index 8f6860d24fe7aa89c7094876c463904f817720cf..95c0c7823e1b9c099349d8b11b00024824229c58 100644 (file)
--- a/src/frame.c
+++ b/src/frame.c
@@ -656,7 +656,7 @@ but if the second optional argument FORCE is non-nil, you may do so.")
              || FRAME_ICONIFIED_P (XFRAME (this))
              /* Allow deleting the terminal frame when at least
                 one X frame exists!  */
-             || FRAME_X_P (XFRAME (this)) && !FRAME_X_P (f))
+             || (FRAME_X_P (XFRAME (this)) && !FRAME_X_P (f)))
            count++;
        }
       if (count == 1)