Fix space issues

INSTALL

@@ -29,7 +29,7 @@ it or regenerate `configure` using a newer version of `autoconf`.
 The simplest way to compile this package is:
 
   1. `cd` to the directory containing the package's source code.
-  
+
   2. Run `sh autoconf.sh`, if building from source (and not a release).
      If you're building from a release, skip this step.
 

ivtest/ivltests/struct_enum_partsel.v

@@ -3,7 +3,7 @@ module main;
    typedef enum logic [2:0] {
       ENUM_VAL = 3'b110
    } enumtype;
-   
+
    typedef struct packed {
       enumtype e;
    } structtype;