patch 9.1.0581: Various lines are indented inconsistently

Problem:  style: Various lines are indented inconsistently
Solution: Retab these lines and correct some comments.
          (zeertzjq)

closes: #15259

Signed-off-by: zeertzjq <zeertzjq@outlook.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/os_mswin.c b/src/os_mswin.c
index df760fd..95e3cbc 100644
--- a/src/os_mswin.c
+++ b/src/os_mswin.c
@@ -2921,7 +2921,7 @@
     // Filter only on ANSI. Otherwise will see a lot of random fonts that we
     // usually don't want.
     if (lf->lfCharSet != ANSI_CHARSET)
-        return 1;
+	return 1;
 
     int (*add_match)(char_u *) = (int (*)(char_u *))lparam;
 
@@ -2955,7 +2955,7 @@
 
 	// Always fill in with the current font size as first option for
 	// convenience. We simply round to the closest integer for simplicity.
-        int font_height = (int)round(
+	int font_height = (int)round(
 		pixels_to_points(-current_font_height, TRUE, (long_i)NULL));
 	vim_snprintf(buf, ARRAY_LENGTH(buf), "h%d", font_height);
 	add_match((char_u *)buf);