correct, remove and add comments

source/build.c

@@ -128,9 +128,9 @@ void setup_build_filenames(char *reffile) {
 
 	path = malloc(strlen(reffile) + 10u);
 	strcpy(path, reffile);
-	s  = (char *)basename(path);	// this is save because the returned pointer is inside $path, and we know we can edit it
+	s  = (char *)basename(path);	// this is safe because the returned pointer is inside $path, and we know we can edit it
 	*s = '\0';
-	strcat(path, "n");
+	strcat(path, "n"); // XXX: prefix signalling "new"
 	++s;
 	strcpy(s, basename(reffile));
 	newreffile = strdup(path);
@@ -193,6 +193,8 @@ void build(void) {
 	unsigned long fileindex;			/* source file name index */
 	bool		  interactive = true;	/* output progress messages */
 
+    // XXX: find a safe way to remove this,
+    //       building is cheap, $HOME moves rarely
 	/* normalize the current directory relative to the home directory so
 	   the cross-reference is not rebuilt when the user's login is moved */
 	strcpy(newdir, currentdir);

source/crossref.c

@@ -225,7 +225,6 @@ void putcrossref(void) {
 	lineoffset = dboffset;
 	dboffset += fprintf(newrefs, "%d ", lineno);
 
-	/* HBB 20010425: added this line: */
 	my_yytext[my_yyleng] = '\0';
 
 	blank = false;

source/dir.c

@@ -138,7 +138,7 @@ void sourcedir(char *dirlist) {
 		}
 		dir = strtok(NULL, DIRSEPS);
 	}
-	free(dirlist); /* HBB 20000421: avoid memory leaks */
+	free(dirlist);
 }
 
 /* add a source directory to the list */
@@ -224,7 +224,7 @@ void makefilelist(void) {
 
 	makevpsrcdirs(); /* make the view source directory list */
 
-	/* if -i was falseT given and there are source file arguments */
+	/* if -i was NOT given and there are source file arguments */
 	if(namefile == NULL && fileargc > 0) {
 
 		/* put them in a list that can be expanded */