kernel: cleanup vararg argument names (#5821)

The kernel automatically adds the `...` so we don't have to do it.

Before:

    gap> Print;
    function( arg...... ) ... end

After

    gap> Print;
    function( arg... ) ... end

Since this is a purely cosmetic triviality I am not bothering
to add a test.

src/gvars.c

@@ -1419,7 +1419,7 @@ static StructGVarFunc GVarFuncs[] = {
     GVAR_FUNC_1ARGS(MakeConstantGVar, name),
     GVAR_FUNC_1ARGS(IsReadOnlyGVar, name),
     GVAR_FUNC_1ARGS(IsConstantGVar, name),
-    GVAR_FUNC_XARGS(AUTO, -3, "func, arg, names..."),
+    GVAR_FUNC_XARGS(AUTO, -3, "func, arg, names"),
 
     GVAR_FUNC_1ARGS(DeclareGlobalName, name),
 

src/hpc/threadapi.c

@@ -2536,11 +2536,11 @@ static StructGVarFunc GVarFuncs[] = {
     GVAR_FUNC_1ARGS(SyncRead, syncvar),
     GVAR_FUNC_1ARGS(SyncIsBound, syncvar),
     GVAR_FUNC_1ARGS(IS_LOCKED, obj),
-    GVAR_FUNC_XARGS(LOCK, -1, "obj, ..."),
-    GVAR_FUNC_XARGS(DO_LOCK, -1, "obj, ..."),
+    GVAR_FUNC_XARGS(LOCK, -1, "obj"),
+    GVAR_FUNC_XARGS(DO_LOCK, -1, "obj"),
     GVAR_FUNC_1ARGS(WRITE_LOCK, obj),
     GVAR_FUNC_1ARGS(READ_LOCK, obj),
-    GVAR_FUNC_XARGS(TRYLOCK, -1, "obj, ..."),
+    GVAR_FUNC_XARGS(TRYLOCK, -1, "obj"),
     GVAR_FUNC_1ARGS(UNLOCK, sp),
     GVAR_FUNC_0ARGS(CURRENT_LOCKS),
     GVAR_FUNC_1ARGS(REFINE_TYPE, obj),

src/streams.c

@@ -1703,11 +1703,11 @@ static StructGVarFunc GVarFuncs[] = {
     GVAR_FUNC_1ARGS(OUTPUT_LOG_TO, filename),
     GVAR_FUNC_1ARGS(OUTPUT_LOG_TO_STREAM, filename),
     GVAR_FUNC_0ARGS(CLOSE_OUTPUT_LOG_TO),
-    GVAR_FUNC_XARGS(Print, -1, "arg..."),
-    GVAR_FUNC_XARGS(PRINT_TO, -1, "arg..."),
-    GVAR_FUNC_XARGS(PRINT_TO_STREAM, -1, "arg..."),
-    GVAR_FUNC_XARGS(APPEND_TO, -1, "arg..."),
-    GVAR_FUNC_XARGS(APPEND_TO_STREAM, -1, "arg..."),
+    GVAR_FUNC_XARGS(Print, -1, "arg"),
+    GVAR_FUNC_XARGS(PRINT_TO, -1, "arg"),
+    GVAR_FUNC_XARGS(PRINT_TO_STREAM, -1, "arg"),
+    GVAR_FUNC_XARGS(APPEND_TO, -1, "arg"),
+    GVAR_FUNC_XARGS(APPEND_TO_STREAM, -1, "arg"),
     GVAR_FUNC_0ARGS(TmpName),
     GVAR_FUNC_0ARGS(TmpDirectory),
     GVAR_FUNC_1ARGS(RemoveFile, filename),

src/tietze.c

@@ -1573,9 +1573,9 @@ static StructGVarFunc GVarFuncs[] = {
     GVAR_FUNC_1ARGS(TzRenumberGens, tietze),
     GVAR_FUNC_1ARGS(TzReplaceGens, tietze),
     GVAR_FUNC_3ARGS(TzSubstituteGen, tietze, gennum, word),
-    GVAR_FUNC_XARGS(TzOccurrences, -1, "arg..."),
-    GVAR_FUNC_XARGS(TzOccurrencesPairs, -1, "arg..."),
-    GVAR_FUNC_XARGS(TzSearchC, -1, "arg..."),
+    GVAR_FUNC_XARGS(TzOccurrences, -1, "arg"),
+    GVAR_FUNC_XARGS(TzOccurrencesPairs, -1, "arg"),
+    GVAR_FUNC_XARGS(TzSearchC, -1, "arg"),
     GVAR_FUNC_2ARGS(REDUCE_LETREP_WORDS_REW_SYS, tzwords, word),
     { 0, 0, 0, 0, 0 }