gdb: Don't print a newline in language la_print_typedef methods

gdb: Don't print a newline in language la_print_typedef methods

When calling the language la_print_typedef method, don't include a
newline at the end, instead print the newline from the users of
la_print_typedef.

This change will be useful in a later commit when the output from
la_print_typedef will be placed into an MI output field, in which case
the trailing newline is not required.

There should be no user visible changes after this commit.

gdb/ChangeLog:

	* ada-typeprint.c (ada_print_typedef): Don't print newline at the
	end.
	* c-typeprint.c (c_print_typedef): Likewise.
	* f-typeprint.c (f_print_typedef): Likewise.
	* m2-typeprint.c (m2_print_typedef): Likewise.
	* p-typeprint.c (pascal_print_typedef): Likewise.
	* rust-lang.c (rust_print_typedef): Likewise.
	* symtab.c (print_symbol_info): Print a newline after calling
	typedef_print.

Change-Id: I6e697ea1ec0eadaa31aefaea959b2055188d680d