Docs: Fix typo in the name of the argument "maxdist" of trace (#1933)

Docs: Fix typo in the name of the argument maxdist of trace

Signed-off-by: Aidan Welch <aidan@freedwave.com>

Author: AidanWelch

src/doc/languagespec.tex

@@ -5922,7 +5922,7 @@ \section{Dictionary Lookups}
 \apiend
 \vspace{-16pt}
 
-\apiitem{"mindist", <float>}
+\apiitem{"maxdist", <float>}
 \vspace{12pt}
 The maximum hit distance (default: infinite).
 \apiend

src/doc/stdlib.md

@@ -2190,7 +2190,7 @@ them will be removed entirely in OSL 2.0.
         shaders should pass a unit length (see Section [](#sec-stdlib-geom))
         dir vector.
 
-    `"mindist",` *`float`*
+    `"maxdist",` *`float`*
       : The maximum hit distance (default: infinite).
 
     `"shade",` *`int`*