Print commands as they're read from a file.

When using the "read" command, all commands executed are printed first,
so you can see what goes wrong, if anything.

main.c

@@ -327,7 +327,7 @@ static void process_rc_file(void)
 
 	snprintf(text, sizeof(text), "%s/.mspdebug", home);
 	if (!access(text, F_OK))
-		process_file(text);
+		process_file(text, 0);
 }
 
 static int add_fet_device(void *user_data, const struct fet_db_record *r)

reader.c

@@ -187,7 +187,7 @@ int process_command(char *cmd)
 	return do_command(cmd, 0);
 }
 
-int process_file(const char *filename)
+int process_file(const char *filename, int show)
 {
 	FILE *in;
 	char buf[1024];
@@ -211,6 +211,9 @@ int process_file(const char *filename)
 		if (*cmd == '#')
 			continue;
 
+		if (show)
+			printc("\x1b[1m=>\x1b[0m %s", cmd);
+
 		if (do_command(cmd, 0) < 0) {
 			printc_err("read: error processing %s (line %d)\n",
 				filename, line_no);

reader.h

@@ -51,8 +51,10 @@ void reader_exit(void);
 
 /* Commands can be fed directly to the processor either one at a time,
  * or by specifying a file to read from.
+ *
+ * If show is non-zero, commands will be printed as they are executed.
  */
 int process_command(char *cmd);
-int process_file(const char *filename);
+int process_file(const char *filename, int show);
 
 #endif

stdcmd.c

@@ -240,7 +240,7 @@ int cmd_read(char **arg)
 		return -1;
 	}
 
-	return process_file(filename);
+	return process_file(filename, 1);
 }
 
 int cmd_exit(char **arg)