[skip changelog] Fix lib list output

Output columns are now smaller, sentence is cut if too long and renamed
Sentence column to Description.

Author: silvanocerza

cli/lib/list.go

@@ -90,7 +90,10 @@ func (ir installedResult) String() string {
 	}
 
 	t := table.New()
-	t.SetHeader("Name", "Installed", "Available", "Location", "Sentence")
+	t.SetHeader("Name", "Installed", "Available", "Location", "Description")
+	t.SetColumnWidthMode(1, table.Average)
+	t.SetColumnWidthMode(2, table.Average)
+	t.SetColumnWidthMode(4, table.Average)
 
 	lastName := ""
 	for _, libMeta := range ir.installedLibs {
@@ -115,7 +118,10 @@ func (ir installedResult) String() string {
 			sentence := lib.Sentence
 			if sentence == "" {
 				sentence = "-"
+			} else if len(sentence) > 40 {
+				sentence = sentence[:39] + "…"
 			}
+
 			t.AddRow(name, lib.Version, available, location, sentence)
 		}
 	}

test/test_lib.py

@@ -46,7 +46,7 @@ def test_list(run_command):
     assert "" != toks[1]
     assert "" != toks[2]
     # Verifies library sentence
-    assert "An efficient and elegant JSON library for Arduino." == toks[4]
+    assert "An efficient and elegant JSON library f…" == toks[4]
 
     # Look at the JSON output
     result = run_command("lib list --format json")