ref-manual: typo "SSTATE_MIRROR" -> "SSTATE_MIRRORS"

(From yocto-docs rev: 7c4d45e50422fa6e6cb607b0df2abdbb41ffd6d1)

Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/documentation/ref-manual/ref-variables.xml b/documentation/ref-manual/ref-variables.xml
index e18f41180c..c3e3c50158 100644
--- a/documentation/ref-manual/ref-variables.xml
+++ b/documentation/ref-manual/ref-variables.xml
@@ -14033,7 +14033,7 @@
                 <para>
                     When pointing to sstate build artifacts on another machine
                     that uses a different GCC version for native builds,
-                    you must configure <filename>SSTATE_MIRROR</filename>
+                    you must configure <filename>SSTATE_MIRRORS</filename>
                     with a regular expression that maps local search paths
                     to server paths.
                     The paths need to take into account