gislib: no C++ style comments in C code

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@67254 15284696-431f-4ddb-bdfa-cd5b030d7da7

lib/gis/lz4.c

@@ -825,7 +825,7 @@ _next_match:
                 /* Match description too long : reduce it */
                 matchLength = (15-1) + (oMaxMatch-op) * 255;
             }
-            //printf("offset %5i, matchLength%5i \n", (int)(ip-match), matchLength + MINMATCH);
+            /* printf("offset %5i, matchLength%5i \n", (int)(ip-match), matchLength + MINMATCH); */
             ip += MINMATCH + matchLength;
 
             if (matchLength>=ML_MASK)