add more chugin @import error reporting

VERSIONS

@@ -2,7 +2,7 @@
 ChucK VERSIONS log
 ------------------
 
-1.5.4.0 (October 2024)
+1.5.4.0 (November 2024)
 =======
 ********** new language feature ************
 @import system for .ck and .chug files
@@ -11,7 +11,6 @@ ChucK VERSIONS log
   ***************************************************
   https://chuck.stanford.edu/doc/language/import.html
   ***************************************************
-
 - the @import system imports classes and operator overloads from another 
     .ck file, or from a chugin; it is designed to faciliate creating, 
     using, and distributing multi-file programs and libraries

src/core/chuck_compile.cpp

@@ -848,7 +848,7 @@ t_CKBOOL type_engine_scan_import( Chuck_Env * env, a_Stmt_List stmt_list,
                         {
                             // print error (chugin loading only prints to log)
                             EM_error2( import->where, "cannot load chugin: '%s'...", theFile.c_str() );
-                            EM_error2( 0, "...(reason) %s", errorStr.length() ? errorStr.c_str() : "[none given, unhelpfully]" );
+                            EM_error2( 0, "...(reason) %s", errorStr.length() ? errorStr.c_str() : "[none provided, unhelpfully (try running with more verbose log-level)]" );
                             EM_error2( 0, "...in file '%s'", abs.c_str() );
                             // error encountered in chugin load, bailing out
                             return FALSE;