Reduce line height for code

To make it a bit more compact and readable.

Change-Id: Ib4903a661c50b46da3e83d8de5015ae9edfbf108

gitiles-servlet/src/main/resources/com/google/gitiles/static/base.css

diff --git a/gitiles-servlet/src/main/resources/com/google/gitiles/static/base.css b/gitiles-servlet/src/main/resources/com/google/gitiles/static/base.css
index a1cd902..0c0da86 100644
--- a/gitiles-servlet/src/main/resources/com/google/gitiles/static/base.css
+++ b/gitiles-servlet/src/main/resources/com/google/gitiles/static/base.css
@@ -456,6 +456,7 @@
   cursor: pointer;
 }
 .FileContents-lineContents {
+  line-height: 1.3em;
   min-height: 1em;
   padding-left: 10px;
 }
@@ -504,6 +505,7 @@
 }
 .Blame-lineContent {
   font-size: 9pt;
+  line-height: 1.3em;
   padding: 0 8px;
 }