Corrected the GF tech file, which attempted to assign labels on
PWELL and NWELL to multiple types in magic, which cannot be done
(and which is not flagged as an error, although it ought to be).

VERSION

diff --git a/VERSION b/VERSION
index 1e2d57a..93bd048 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.0.450
+1.0.451

gf180mcu/magic/gf180mcu.tech

diff --git a/gf180mcu/magic/gf180mcu.tech b/gf180mcu/magic/gf180mcu.tech
index a71ce0c..b8ce0fd 100644
--- a/gf180mcu/magic/gf180mcu.tech
+++ b/gf180mcu/magic/gf180mcu.tech
@@ -1724,8 +1724,6 @@
 
  layer pbase PWELL,PWELLTXT
  and BJTDEF,BJTDRC
- labels PWELL
- labels PWELLTXT port
 
  layer nwell NWELL,NWELLTXT
  and-not BJTDEF,BJTDRC
@@ -1734,8 +1732,6 @@
 
  layer nbase NWELL,NWELLTXT
  and BJTDEF,BJTDRC
- labels NWELL
- labels NWELLTXT port
 
  layer dnwell DNWELL
  labels DNWELL