Homebrew lang fix

Very small tweak to correct the language on Homebrew's sandboxing process.

Discussed in [this commit](9fedafba4b).

configure.ac

@@ -240,7 +240,7 @@ case $host in
 
        AC_CHECK_PROG([BREW],brew, brew)
        if test x$BREW = xbrew; then
-         dnl These Homebrew packages may be bottled, meaning that they won't be found
+         dnl These Homebrew packages may be keg-only, meaning that they won't be found
          dnl in expected paths because they may conflict with system files. Ask
          dnl Homebrew where each one is located, then adjust paths accordingly.
          dnl It's safe to add these paths even if the functionality is disabled by