bin/bdl: Remove the `$S' separator.

It's much easier just to jam it on the end of the base if necessary.
Also, it interferes with not having a prefix.  As a result of this
change, mark `B=' as optional.

diff --git a/bin/bdl b/bin/bdl
index 659f903dbbfd678321853638ce5f1372eba70b93..778e5b1a44c016bd2e085f90e962c219c3b9c91e 100755 (executable)
--- a/bin/bdl
+++ b/bin/bdl
@@ -4,12 +4,9 @@
 V                       = 0
 V_CURL_0                = @echo "  CURL   $@";
 
-## Separator.
-S                       = /
-
 ## Main rule.
-%:; $(V_CURL_$V)curl -fsL -o$@.new $A "$B$S$*" && mv $@.new $@
+%:; $(V_CURL_$V)curl -fsL -o$@.new $A "$B$*" && mv $@.new $@
 
 ## Help summary.
-help:; @echo "Usage: bdl [-j NPROC] [A=ARGS] B=BASE [S=SEP] URL..."
+help:; @echo "Usage: bdl [-j NPROC] [A=ARGS] [B=BASE] URL..."
 .PHONY: help