Adjusted LI coarse fill spacing from 600 to 650 to reduce the maximum
fill amount from about 65% to about 60%.

sky130/magic/sky130.tech

diff --git a/sky130/magic/sky130.tech b/sky130/magic/sky130.tech
index 3b458a8..804c3f6 100644
--- a/sky130/magic/sky130.tech
+++ b/sky130/magic/sky130.tech
@@ -1932,7 +1932,7 @@
 	or	alldiff,allpoly
 	grow	200
  templayer	lifill_coarse topbox
-        slots   0 3000 500 0 3000 500 700 0
+        slots   0 3000 650 0 3000 650 700 0
         and-not obstruct_li_coarse
 	and	topbox
         shrink  1495