x86: return proper error if cs_option() enables AT&T syntax but AT&T support is opt-out at compile time
diff --git a/COMPILE.TXT b/COMPILE.TXT
index f65aa27..f9dfaea 100644
--- a/COMPILE.TXT
+++ b/COMPILE.TXT
@@ -27,7 +27,7 @@
   - CAPSTONE_USE_SYS_DYN_MEM: change this if you have your own dynamic memory management.
   - CAPSTONE_DIET: use this to make the output binaries more compact.
   - CAPSTONE_X86_REDUCE: another option to make X86 binary smaller.
-  - CAPSTONE_X86_ATT_DISABLE: disables AT&T syntax on x86
+  - CAPSTONE_X86_ATT_DISABLE: disables AT&T syntax on x86.
 
   By default, Capstone use system dynamic memory management, and both DIET and X86_REDUCE
   modes are disable.