Corrected an error in the nwell-with-guard-ring drawing routine,
which inadvertently lost a "popbox" command from the middle of
the script, causing DRC errors on the right side.

VERSION

diff --git a/VERSION b/VERSION
index fb5bced..2dd3986 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.0.477
+1.0.478

sky130/magic/sky130.tcl

diff --git a/sky130/magic/sky130.tcl b/sky130/magic/sky130.tcl
index 31051a5..0c9019c 100644
--- a/sky130/magic/sky130.tcl
+++ b/sky130/magic/sky130.tcl
@@ -524,6 +524,7 @@
    box grow n -0.3um
    box grow s -0.3um
    paint nsc
+   popbox
    paint nsd
    popbox