Update systemverilog-plugin/Makefile

Co-authored-by: Mariusz Glebocki <mglb@arccos-1.net>
diff --git a/systemverilog-plugin/Makefile b/systemverilog-plugin/Makefile
index b4d09ce..21d0c08 100644
--- a/systemverilog-plugin/Makefile
+++ b/systemverilog-plugin/Makefile
@@ -46,7 +46,7 @@
 
 CXXFLAGS += -std=c++17 -Wall -W -Wextra \
             -Wno-deprecated-declarations \
-            -Wno-unused-parameter \
+            -Wno-unused-parameter
             $(shell $(PKG_CONFIG_INVOKE) --cflags Surelog)
 
 LDFLAGS += $(shell $(PKG_CONFIG_INVOKE) --libs-only-L Surelog)