Upgrade some debug printing to debug statements.

tcshrc

@@ -23,9 +23,7 @@ if( $?tcsh ) then
 		echo "We are on a very ancient TCSH!  There may be many problems..."
 	else
 		if( $tcsh_minor == 14 && $tcsh_patch < 2 ) then
-			if( $?CSHENV_DEBUG ) then
-				echo "We may not have ADAM's patches..."
-			endif
+			_debug "We may not have ADAM's patches..."
 		endif
 	endif
 
@@ -54,7 +52,7 @@ if( $?CSHENV_HISTORY_SIZE ) then
 	set history=${CSHENV_HISTORY_SIZE}
 endif
 
-if( $?CSHENV_DEBUG ) echo "Setting up optional sourcing mechanism."
+_debug "Setting up optional sourcing mechanism."
 # This safe_source alias is incredibly delicate.  It drives the whole
 # optional sourcing mechanism -- DO NOT MESS WITH IT!
 alias safe_source 'eval "if ( -f \!:1 ) then \\