cthon: Have colors script exit with the proper exit code

Otherwise, the script will always return success and pipelines using
cthon.zsh won't work properly

Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

colors/cthon.py

@@ -5,6 +5,7 @@ import termcolor
 colors = { "b" : "blue", "g" : "green", "s" : "cyan", "l" : "yellow" }
 last = "white"
 newline = False
+status=0
 
 text = ""
 def print_text(color, attr=None):
@@ -20,6 +21,7 @@ while c := sys.stdin.read(1):
         text = "\n" + text if newline else text
         newline = False
         print_text("red", "bold")
+        status=1
     elif match := re.match("^./server -([bgsl]) .*?\n$", text):
         print_text(colors[match.group(1)], None)
     elif match := re.match("^Waiting for '([bgsl])' to finish...", text):
@@ -33,3 +35,5 @@ while c := sys.stdin.read(1):
         if len(text) > 1:
             print_text("white", "bold")
         text = ""
+
+sys.exit(status)