manual: Fix up stdbit.texi

My recent change broke make pdf and in other documentation formats
results in weird rendering and invalid URL, all because of a forgotten
comma to separate @uref arguments.

diff --git a/manual/stdbit.texi b/manual/stdbit.texi
index f74d33903a5a664c1dd8cf8e10c07a1c4d00cb3b..48591eab8229cc03b8adc3ed2115dbefa6103d7d 100644 (file)
--- a/manual/stdbit.texi
+++ b/manual/stdbit.texi
@@ -34,7 +34,7 @@ the functions but without any suffix such as @samp{_uc}.  The
 type-generic macro can only be used with an argument of an unsigned
 integer type with a width of 8, 16, 32 or 64 bits, or when using
 a compiler with support for
-@uref{https://gcc.gnu.org/onlinedocs/gcc/Other-Builtins.html@code{__builtin_stdc_bit_ceil}},
+@uref{https://gcc.gnu.org/onlinedocs/gcc/Other-Builtins.html,@code{__builtin_stdc_bit_ceil}},
 etc.@:, built-in functions such as GCC 14.1 or later
 any unsigned integer type those built-in functions support.
 In GCC 14.1 that includes support for @code{unsigned __int128} and