From cbe31981b327d6348171be2abbf94dfb68150657 Mon Sep 17 00:00:00 2001
From: o9000 <mrovi9000@gmail.com>
Date: Tue, 27 Jun 2017 12:42:51 +0200
Subject: [PATCH] Executor: fallback to old style tooltips if stderr is empty

---
 src/execplugin/execplugin.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/src/execplugin/execplugin.c b/src/execplugin/execplugin.c
index e2d221f..5059827 100644
--- a/src/execplugin/execplugin.c
+++ b/src/execplugin/execplugin.c
@@ -794,10 +794,12 @@ gboolean read_execp(void *obj)
                 start += strlen(ansi_clear_screen);
             else
                 start = execp->backend->buf_stderr;
-            execp->backend->tooltip = strdup(start);
-            rstrip(execp->backend->tooltip);
-            if (strlen(execp->backend->tooltip) > MAX_TOOLTIP_LEN)
-                execp->backend->tooltip[MAX_TOOLTIP_LEN] = '\0';
+            if (*start) {
+                execp->backend->tooltip = strdup(start);
+                rstrip(execp->backend->tooltip);
+                if (strlen(execp->backend->tooltip) > MAX_TOOLTIP_LEN)
+                    execp->backend->tooltip[MAX_TOOLTIP_LEN] = '\0';
+            }
         }
         execp->backend->buf_stderr_length = 0;
         execp->backend->buf_stderr[execp->backend->buf_stderr_length] = '\0';