[bladeRF-cli] Make 'help print' and 'help set' formatting match

[jynik]

They currently look like this:

Usage: print <param>

The print command takes a parameter to print. The parameter is one of:

       Parameter Description
  -------------- --------------------------------------------------------
       bandwidth Bandwidth settings
       frequency Frequency settings
            gpio FX3 <-> FPGA GPIO state
        loopback Loopback settings
         lnagain Gain setting of the LNA, in dB
          rxvga1 Gain setting of RXVGA1, in dB
          rxvga2 Gain setting of RXVGA2, in dB
          txvga1 Gain setting of TXVGA1, in dB
          txvga2 Gain setting of TXVGA2, in dB
        sampling External or internal sampling mode
      samplerate Samplerate settings
         trimdac VCTCXO Trim DAC settings


bladeRF> help set

Usage: set <param> <arguments>

The set command takes a parameter and an arbitrary number of arguments
for that particular command. The parameter is one of:

  -----------------------------------------------------------------------
       Parameter Description
  -------------- --------------------------------------------------------
       bandwidth Bandwidth settings

       frequency Frequency settings

            gpio FX3 <-> FPGA GPIO state

        loopback Loopback settings. Run 'set loopback' for available
                 modes.

         lnagain Gain setting of the LNA, in dB. Valid values: 0, 3, 6

          rxvga1 Gain setting of RXVGA1, in dB. Range: [5, 30]

          rxvga2 Gain setting of RXVGA2, in dB. Range: [0, 30]

          txvga1 Gain setting of TXVGA1, in dB. Range: [-35, -4]

          txvga2 Gain setting of TXVGA2, in dB. Range: [0, 25]

        sampling External or internal sampling mode

      samplerate Sample rate settings

         trimdac VCTCXO Trim DAC settings
  -----------------------------------------------------------------------