slightly improve some comments

sfeed.c

@@ -530,7 +530,7 @@ gettzoffset(const char *s)
 			;
 		if (i != 3)
 			return 0;
-		/* compare tz and adjust offset relative to UTC */
+		/* compare timezone and adjust offset relative to UTC */
 		for (i = 0; i < sizeof(tzones) / sizeof(*tzones); i++) {
 			if (!memcmp(s, tzones[i].name, 3))
 				return tzones[i].offhour;
@@ -978,7 +978,7 @@ xmltagend(XMLParser *p, const char *t, size_t tl, int isshort)
 	} else if (ctx.tag.id && istag(ctx.tag.name, ctx.tag.len, t, tl)) {
 		/* matched tag end: close it */
 		/* copy also to the link field if the attribute isPermaLink="true"
-		   and it is not set by a tag with higher prio. */
+		   and it is not set by a tag with higher priority. */
 		if (ctx.tag.id == RSSTagGuidPermalinkTrue && ctx.field &&
 		    ctx.tag.id > ctx.fields[FeedFieldLink].tagid) {
 			string_clear(&ctx.fields[FeedFieldLink].str);

sfeed_curses.c

@@ -130,7 +130,7 @@ struct item {
 };
 
 struct urls {
-	char **items; /* array of urls */
+	char **items; /* array of URLs */
 	size_t len;   /* amount of items */
 	size_t cap;   /* available capacity */
 };

sfeed_gopher.c

@@ -65,7 +65,7 @@ printfeed(FILE *fpitems, FILE *fpin, struct feed *f)
 
 		if (fields[FieldLink][0]) {
 			itemtype = 'h';
-			/* if it's a gopher URL then change it into a direntry */
+			/* if it's a gopher URL then change it into a DirEntity */
 			if (!strncmp(fields[FieldLink], "gopher://", 9) &&
 			    uri_parse(fields[FieldLink], &u) != -1) {
 				itemhost = u.host;

sfeed_mbox.c

@@ -22,8 +22,8 @@ djb2(unsigned char *s, unsigned long long hash)
 }
 
 /* Unescape / decode fields printed by string_print_encoded()
- * "\\" to "\", "\t", to TAB, "\n" to newline. Unrecognised escape sequences
- * are ignored: "\z" etc. Mangle "From " in mboxrd style (always prefix >). */
+ * "\\" to "\", "\t", to TAB, "\n" to newline. Other escape sequences are
+ * ignored: "\z" etc. Mangle "From " in mboxrd style (always prefix >). */
 static void
 printcontent(const char *s, FILE *fp)
 {

xml.h

@@ -30,7 +30,7 @@ typedef struct xmlparser {
 	/* current tag */
 	char tag[1024];
 	size_t taglen;
-	/* current tag is in short form ? <tag /> */
+	/* current tag is in shortform ? <tag /> */
 	int isshorttag;
 	/* current attribute name */
 	char name[1024];