Backport...

Backport https://disenchant.net/git/tyrquake.git/commit/?id=6d3318ad31e642237a383d2e69b941da762a65bf

common/cvar.c

@@ -43,8 +43,6 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 #endif
 #endif
 
-static const char *cvar_null_string = "";
-
 #define cvar_entry(ptr) container_of(ptr, struct cvar_s, stree)
 DECLARE_STREE_ROOT(cvar_tree);
 
@@ -174,9 +172,8 @@ Cvar_VariableString(const char *var_name)
     cvar_t *var;
 
     var = Cvar_FindVar(var_name);
-    if (!var)
-	return cvar_null_string;
-    return var->string;
+
+    return var ? var->string : "";
 }