style: remove useless parens

* data/bison.m4, data/glr.c, data/glr.cc, data/lalr1.cc,
* data/lalr1.java, data/location.cc, data/yacc.c: Call b4_output_end
without parens.

data/bison.m4

@@ -76,8 +76,8 @@ m4_divert_push(0)dnl
 ])
 
 
-# b4_output_end()
-# ---------------
+# b4_output_end
+# -------------
 # Output nothing, restore # as comment character (no expansions after #).
 m4_define([b4_output_end],
 [m4_divert_pop(0)

data/glr.c

@@ -203,7 +203,7 @@ b4_copyright([Skeleton interface for Bison GLR parsers in C],
 ]b4_cpp_guard_open([b4_spec_defines_file])[
 ]b4_shared_declarations[
 ]b4_cpp_guard_close([b4_spec_defines_file])[
-]b4_output_end()
+]b4_output_end
 ])])
 
 
@@ -2579,4 +2579,4 @@ m4_if(b4_prefix, [yy], [],
 #define yylloc  ]b4_prefix[lloc]])])[
 
 ]b4_epilogue[]dnl
-b4_output_end()
+b4_output_end

data/glr.cc

@@ -336,7 +336,7 @@ b4_copyright([Skeleton interface for Bison GLR parsers in C++],
 ]b4_cpp_guard_open([b4_spec_defines_file])[
 ]b4_shared_declarations[
 ]b4_cpp_guard_close([b4_spec_defines_file])[
-]b4_output_end()])
+]b4_output_end])
 
 # Let glr.c (and b4_shared_declarations) believe that the user
 # arguments include the parser itself.

data/lalr1.cc

@@ -405,7 +405,7 @@ b4_copyright([Skeleton interface for Bison LALR(1) parsers in C++])
 ]b4_cpp_guard_open([b4_spec_defines_file])[
 ]b4_shared_declarations(hh)[
 ]b4_cpp_guard_close([b4_spec_defines_file])
-b4_output_end()
+b4_output_end
 ])
 
 
@@ -1198,7 +1198,7 @@ b4_error_verbose_if([state_type yystate, const symbol_type& yyla],
 ]b4_token_ctor_if([], [b4_yytranslate_define([cc])])[
 ]b4_namespace_close[
 ]b4_epilogue[]dnl
-b4_output_end()
+b4_output_end
 
 
 m4_popdef([b4_copyright_years])dnl

data/lalr1.java

@@ -1068,4 +1068,4 @@ b4_percent_code_get[]dnl
 }
 
 b4_epilogue[]dnl
-b4_output_end()
+b4_output_end

data/location.cc

@@ -308,7 +308,7 @@ b4_copyright([Positions for Bison parsers in C++])[
 ]b4_position_define[
 ]b4_namespace_close[
 ]b4_cpp_guard_close([b4_dir_prefix[]position.hh])
-b4_output_end()
+b4_output_end
 
 
 b4_output_begin([b4_dir_prefix[]location.hh])
@@ -327,7 +327,7 @@ b4_copyright([Locations for Bison parsers in C++])[
 ]b4_location_define[
 ]b4_namespace_close[
 ]b4_cpp_guard_close([b4_dir_prefix[]location.hh])
-b4_output_end()
+b4_output_end
 ])
 
 

data/stack.hh

@@ -148,8 +148,7 @@ b4_copyright([Stack handling for Bison parsers in C++])[
 ]b4_stack_define[
 ]b4_namespace_close[
 
-]b4_cpp_guard_close([b4_dir_prefix[]stack.hh])
-b4_output_end()
-])
+]b4_cpp_guard_close([b4_dir_prefix[]stack.hh])[
+]b4_output_end])
 
 m4_popdef([b4_copyright_years])

data/yacc.c

@@ -1908,12 +1908,12 @@ yypushreturn:]])[
   return yyresult;
 }
 ]b4_epilogue[]dnl
-b4_output_end()
+b4_output_end
 
 b4_defines_if(
 [b4_output_begin([b4_spec_defines_file])[
 ]b4_copyright([Bison interface for Yacc-like parsers in C])[
 
 ]b4_shared_declarations[
-]b4_output_end()
+]b4_output_end
 ])# b4_defines_if