.describe("r", "Reserved names to exclude from mangling.")
.describe("c", "Enable compressor/pass compressor options. \
Pass options like -c hoist_vars=false,if_return=false. \
-Use -c with no argument if you want to disable the squeezer entirely.")
+Use -c with no argument to use the default compression options.")
.describe("d", "Global definitions")
.describe("comments", "Preserve copyright comments in the output. \
.alias("d", "define")
.alias("r", "reserved")
+ .string("source-map")
+ .string("source-map-root")
.string("b")
.string("m")
.string("c")