trim: Remove additional space during trimming

I noticed this when I'm testing with -v enabled. Looks like the trim
function replaces any spaces with a space.

This fixes the problem where terminal program cannot be displayed
because of an additional space in PPID variable.

neofetch

@@ -3931,7 +3931,7 @@ trim() {
     set -f
     # shellcheck disable=2048,2086
     set -- $*
-    printf '%s\n' "${*//[[:space:]]/ }"
+    printf '%s\n' "${*//[[:space:]]/}"
     set +f
 }