[intro.multithread.general] Say "use", not "access" functions (#6503)

Author: languagelawyer

source/basic.tex

@@ -6274,7 +6274,7 @@
 new thread, not by the creating thread.
 \end{note}
 Every thread in a program can
-potentially access every object and function in a program.
+potentially use every object and function in a program.
 \begin{footnote}
 An object
 with automatic or thread storage duration\iref{basic.stc} is associated with