Corrected the netgen setup file for sky130, which was supposed to
have had one entry for "special_pfet_latch" and keep the original
for "special_pfet_pass" so as to maintain backwards compatibility.
Somehow I ended up with "special_pfet_latch" twice.

VERSION

diff --git a/VERSION b/VERSION
index 743f669..808ac74 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.0.472
+1.0.473

sky130/netgen/sky130_setup.tcl

diff --git a/sky130/netgen/sky130_setup.tcl b/sky130/netgen/sky130_setup.tcl
index f278efa..6a2f05c 100644
--- a/sky130/netgen/sky130_setup.tcl
+++ b/sky130/netgen/sky130_setup.tcl
@@ -172,7 +172,8 @@
 lappend devices sky130_fd_pr__special_nfet_latch
 lappend devices sky130_fd_pr__special_nfet_pass
 lappend devices sky130_fd_pr__special_pfet_latch
-lappend devices sky130_fd_pr__special_pfet_latch
+# special_pfet_pass retained for backwards compatibility.
+lappend devices sky130_fd_pr__special_pfet_pass
 lappend devices sky130_fd_pr__special_nfet_01v8
 lappend devices sky130_fd_pr__special_pfet_01v8_hvt
 lappend devices sky130_fd_pr__cap_var_lvt