Update base/loading.jl

Co-authored-by: Denis Barucic <[email protected]>

Author: IanButterworth

base/loading.jl

@@ -2819,7 +2819,7 @@ global mkpidlock_hook
 global trymkpidlock_hook
 global parse_pidfile_hook
 
-# The perferences hash is only known after precompilation so just assume no preferences
+# The preferences hash is only known after precompilation so just assume no preferences
 # meaning that if all other conditions are equal, the same package cannot be precompiled
 # with different preferences at the same time.
 cache_pidfile_path(pkg::PkgId) = compilecache_path(pkg, UInt64(0)) * ".pidfile"