JianyuWang0623 opened a new pull request, #2841:
URL: https://github.com/apache/nuttx-apps/pull/2841

   ## Summary
   Concat variable arguments failed
   1. Without this patch
   ```
   nsh> set var_test `uname`
   nsh> echo $var_test
   NuttX
   nsh> echo $var_test | cat
   sh [5:100]
   
   nsh>
   ```
   2. With this patch
   ```
   nsh> set var_test `uname`
   nsh> echo $var_test
   NuttX
   nsh> echo $var_test | cat
   sh [4:100]
   NuttX
   nsh>
   ```
   
   Reported by @jasonbu and @[email protected], thank you ;-)
   
   ## Impact
   nshlib/pipeline
   
   ## Testing
   1. Selftest as commit message show
   2. NuttX CI
   
   


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