Fix documentation mistake about standalone problem
I guess author meant "standalone program" not "standalone problem" ?
Related:
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/* Configuration ************************************************************/
/* CONFIG_NSH_BUILTIN_APPS - Build the I2SCHAR test as an NSH built-in
- * function. Default: Built as a standalone problem
+ * function. Default: Built as a standalone program
* CONFIG_EXAMPLES_I2SCHAR_DEVPATH - The default path to the I2S character
* device. Default: /dev/i2schar0
*/
