i965: Settle on printing our program debug to stdout.

Mixing stderr (_mesa_print_program, _mesa_print_instruction,
_mesa_print_alu) with stdout means that when writing both to a file,
there isn't a consistent ordering between the two.
diff --git a/src/mesa/program/prog_print.h b/src/mesa/program/prog_print.h
index 9ab7456..4ffd5ab 100644
--- a/src/mesa/program/prog_print.h
+++ b/src/mesa/program/prog_print.h
@@ -56,6 +56,13 @@
 _mesa_print_swizzle(GLuint swizzle);
 
 extern void
+_mesa_fprint_alu_instruction(FILE *f,
+			     const struct prog_instruction *inst,
+			     const char *opcode_string, GLuint numRegs,
+			     gl_prog_print_mode mode,
+			     const struct gl_program *prog);
+
+extern void
 _mesa_print_alu_instruction(const struct prog_instruction *inst,
                             const char *opcode_string, GLuint numRegs);