src: restore the interface-compression section heading in m_constants

The named-constant retirement deleted the WENO/MUSCL block between two section headings and merged them into one nonsensical comment. Flagged by automated PR review on #1552.

Author: sbryngelson

src/common/m_constants.fpp

@@ -50,7 +50,7 @@ module m_constants
     real(wp), parameter :: broadband_spectral_level_constant = 20._wp
     !> The spectral level constant to correct the magnitude at each frequency to ensure the source is overall broadband
     real(wp), parameter :: broadband_spectral_level_growth_rate = 10._wp
-    ! Reconstruction Types Interface Compression
+    ! Interface compression (THINC)
     real(wp), parameter :: dflt_ic_eps = 1e-4_wp        !< Ensure compression is only applied to surface cells in THINC
     real(wp), parameter :: dflt_ic_beta = 1.6_wp        !< Sharpness parameter's default value used in THINC
     real(wp), parameter :: moncon_cutoff = 1e-8_wp      !< Monotonicity constraint's limiter to prevent extremas in THINC