fixup! Generalize ID_malloc to ID_allocate with optional zero-init

Author: tautschnig

src/ansi-c/expr2c.cpp

@@ -1108,7 +1108,7 @@ std::string expr2ct::convert_allocate(
   std::string op0=convert_with_precedence(src.op0(), p0);
 
   unsigned p1;
-  std::string op1=convert(src.op0(), p1);
+  std::string op1=convert_with_precedence(src.op0(), p1);
 
   std::string dest="ALLOCATE";
   dest+='(';