Fabian Homborg 425dabd6b1 Change fish_trace prefix to "->" instead of plusses
This matches what we do in --profile's output:

```
> source /home/alfa/.config/fish/config.fish
--> set -gx XDG_CACHE_HOME /home/alfa/.cache
--> set -gx XDG_CONFIG_HOME /home/alfa/.config
--> set -gx XDG_DATA_HOME /home/alfa/.local/share
```

instead of

```
+ source /home/alfa/.config/fish/config.fish
+++ set -gx XDG_CACHE_HOME /home/alfa/.cache
+++ set -gx XDG_CONFIG_HOME /home/alfa/.config
+++ set -gx XDG_DATA_HOME /home/alfa/.local/share
```
2020-12-11 21:24:33 +01:00
..
2020-12-10 16:25:57 +01:00
2020-11-13 15:12:14 +01:00
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2020-11-15 09:17:23 +01:00