make coverage run

Author: sbryngelson

src/simulation/m_acoustic_src.fpp

@@ -17,7 +17,7 @@ module m_acoustic_src
 
     use m_helper_basic         !< Functions to compare floating point numbers
 
-    use m_constants            !< Definitions of the constants
+    use m_constants            !< Definitions of constants
 
     implicit none
     private; public :: s_initialize_acoustic_src, s_precalculate_acoustic_spatial_sources, s_acoustic_src_calculations