docs/relnotes: escape non-urls

Sphinx can be a bit overly eager at interpreting text with colons in it
as URLs. There's a few cases in our older relnotes where this happens, so
let's escape them to avoid strange, broken links in the rendered output.

Reviewed-by: Eric Engestrom <eric@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19574>

docs/relnotes/13.0.6.rst

@@ -37,7 +37,7 @@ Bug fixes
 -  `Bug 99401 <https://bugs.freedesktop.org/show_bug.cgi?id=99401>`__ -
    [g33] regression: piglit.spec.!opengl 1_0.gl-1_0-beginend-coverage
 -  `Bug 99456 <https://bugs.freedesktop.org/show_bug.cgi?id=99456>`__ -
-   Firefox crashing when opening about:support with WebGL2 enabled
+   Firefox crashing when opening \about:support with WebGL2 enabled
 -  `Bug 99677 <https://bugs.freedesktop.org/show_bug.cgi?id=99677>`__ -
    heap-use-after-free in glsl
 -  `Bug 99715 <https://bugs.freedesktop.org/show_bug.cgi?id=99715>`__ -

docs/relnotes/17.0.0.rst

@@ -267,7 +267,7 @@ Bug fixes
 -  `Bug 99451 <https://bugs.freedesktop.org/show_bug.cgi?id=99451>`__ -
    polygon offset use after free
 -  `Bug 99456 <https://bugs.freedesktop.org/show_bug.cgi?id=99456>`__ -
-   Firefox crashing when opening about:support with WebGL2 enabled
+   Firefox crashing when opening \about:support with WebGL2 enabled
 -  `Bug 99631 <https://bugs.freedesktop.org/show_bug.cgi?id=99631>`__ -
    segfault with OSVRTrackerView and openscenegraph git master
 -  `Bug 99633 <https://bugs.freedesktop.org/show_bug.cgi?id=99633>`__ -

docs/relnotes/17.1.0.rst

@@ -95,7 +95,7 @@ Bug fixes
 -  `Bug 99451 <https://bugs.freedesktop.org/show_bug.cgi?id=99451>`__ -
    polygon offset use after free
 -  `Bug 99456 <https://bugs.freedesktop.org/show_bug.cgi?id=99456>`__ -
-   Firefox crashing when opening about:support with WebGL2 enabled
+   Firefox crashing when opening \about:support with WebGL2 enabled
 -  `Bug 99465 <https://bugs.freedesktop.org/show_bug.cgi?id=99465>`__ -
    vtn_vector_construct writing out of bounds when given multiple
    non-zero length sources

docs/relnotes/19.0.0.rst

@@ -1884,7 +1884,7 @@ Matt Turner (41):
    nir_shader_get_entrypoint()
 -  nir: Wire up int64 lowering functions
 -  nir: Implement lowering of 64-bit shift operations
--  nir: Add and set info::uses_64bit
+-  nir: Add and set \info::uses_64bit
 -  nir: Create nir_builder in nir_lower_doubles_impl()
 -  nir: Add lowering support for 64-bit operations to software
 -  nir: Unset metadata debug bit if no progress made

docs/relnotes/20.0.0.rst

@@ -2173,8 +2173,8 @@ Marek Olšák (245):
 -  st/mesa: call nir_opt_access only once
 -  st/mesa: call nir_lower_flrp only once per shader
 -  compiler: make variable::data::binding unsigned
--  nir: pack nir_variable::data::stream
--  nir: pack nir_variable::data::xfb\_\*
+-  nir: pack nir_variable::\data::stream
+-  nir: pack nir_variable::\data::xfb\_\*
 -  radeonsi: use IR SHA1 as the cache key for the in-memory shader cache
 -  radeonsi: don't keep compute shader IR after compilation
 -  radeonsi: keep serialized NIR instead of nir_shader in

docs/relnotes/20.2.0.rst

@@ -3822,7 +3822,7 @@ Rhys Perry (174):
 - aco: allow reading/writing upper halves/bytes when possible
 - aco: prefer 4-byte aligned definitions
 - aco: add Info::{operand_size,definition_size}
-- aco: use Info::definition_size instead of definition's regclass
+- aco: use \Info::definition_size instead of definition's regclass
 - aco: fix moving sub-dword values out of a register for a fixed definition
 - aco: use num_opcodes instead of last_opcode
 - aco: improve code for f2{i,u}{8,16}

docs/relnotes/20.3.0.rst

@@ -3396,7 +3396,7 @@ Marek Olšák (278):
 - radeonsi: stop using TGSI_PROPERTY_FS_DEPTH_LAYOUT
 - radeonsi: stop using TGSI_PROPERTY_CS_LOCAL_SIZE
 - radeonsi: stop using TGSI_PROPERTY_FS_COLOR0_WRITES_ALL_CBUFS
-- radeonsi: remove info::samplers_declared, image_buffers, msaa_images_declared
+- radeonsi: remove \info::samplers_declared, image_buffers, msaa_images_declared
 - radeonsi: remove redundant si_shader_info::shader_buffers_declared
 - radeonsi: remove redundant si_shader_info::images_declared
 - radeonsi: remove redundant si_shader_info::const_buffers_declared