tweaks: adjust the indentation after the previous change

Also, don't bother assigning the stream pointer of the existing file
to variable 'f', as it gets overwritten right away by the pointer of
the temp file.

src/files.c

@@ -1724,13 +1724,11 @@ bool write_file(const char *name, FILE *stream, bool tmp,
 		int fd_source;
 		FILE *f_source = NULL;
 
-			f = fopen(realname, "rb");
-
-			if (f == NULL) {
-				statusline(ALERT, _("Error reading %s: %s"), realname,
-						strerror(errno));
-				goto cleanup_and_exit;
-			}
+		if (fopen(realname, "rb") == NULL) {
+			statusline(ALERT, _("Error reading %s: %s"), realname,
+					strerror(errno));
+			goto cleanup_and_exit;
+		}
 
 		tempname = safe_tempfile(&f);
 
@@ -1740,19 +1738,19 @@ bool write_file(const char *name, FILE *stream, bool tmp,
 			goto cleanup_and_exit;
 		}
 
-			fd_source = open(realname, O_RDONLY | O_CREAT, S_IRUSR | S_IWUSR);
+		fd_source = open(realname, O_RDONLY | O_CREAT, S_IRUSR | S_IWUSR);
 
-			if (fd_source != -1) {
-				f_source = fdopen(fd_source, "rb");
-				if (f_source == NULL) {
-					statusline(ALERT, _("Error reading %s: %s"), realname,
-								strerror(errno));
-					close(fd_source);
-					fclose(f);
-					unlink(tempname);
-					goto cleanup_and_exit;
-				}
+		if (fd_source != -1) {
+			f_source = fdopen(fd_source, "rb");
+			if (f_source == NULL) {
+				statusline(ALERT, _("Error reading %s: %s"), realname,
+							strerror(errno));
+				close(fd_source);
+				fclose(f);
+				unlink(tempname);
+				goto cleanup_and_exit;
 			}
+		}
 
 		if (f_source == NULL || copy_file(f_source, f, TRUE) != 0) {
 			statusline(ALERT, _("Error writing temp file: %s"),