runtime(doc): fix a few small problems

closes: #20287

Signed-off-by: zeertzjq <zeertzjq@outlook.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>

runtime/doc/map.txt

@@ -1,4 +1,4 @@
-*map.txt*	For Vim version 9.2.  Last change: 2026 May 21
+*map.txt*	For Vim version 9.2.  Last change: 2026 May 23
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -208,8 +208,7 @@ be effective in the current buffer only.  Example: >
 Then you can map ",w" to something else in another buffer: >
 	:map <buffer>  ,w  /[#&!]<CR>
 The local buffer mappings are used before the global ones.  See <nowait> below
-to make a short local mapping taking effect when a longer global one
-exists.
+to make a short local mapping take effect when a longer global one exists.
 The "<buffer>" argument can also be used to clear mappings: >
 	:unmap <buffer> ,w
 	:mapclear <buffer>

runtime/doc/syntax.txt

@@ -852,7 +852,7 @@ See |ft-ada-syntax|
 ALGOL 68					*algol68* *ft-algol68-syntax*
 
 This syntax file currently targets the Algol 68 Genie project using the
-default UPPER stropping regime.  It should also be usuable in other
+default UPPER stropping regime.  It should also be usable in other
 environments using the UPPER stropping regime, though somewhat less complete.
 
 Highlighting can be further configured with the following variables.

runtime/doc/usr_30.txt

@@ -1,4 +1,4 @@
-*usr_30.txt*	For Vim version 9.2.  Last change: 2026 May 15
+*usr_30.txt*	For Vim version 9.2.  Last change: 2026 May 23
 
 
 		     VIM USER MANUAL	by Bram Moolenaar
@@ -531,8 +531,8 @@ they do when using only tab characters.
   Vim 5.4 introduced the 'softtabstop' option.  On top of the (hard) tab stops
 used to display the horizontal tab characters in the text, Vim adds extra
 soft tab stops dedicated only to the cursor.  When 'softtabstop' is set to a
-positive value, the <Tab> key will push the cursor to the next soft tab
-stop.  Vim will insert the correct combination of tab characters and spaces to
+positive value, the <Tab> key will push the cursor to the next soft tab stop.
+Vim will insert the correct combination of tab characters and spaces to
 achieve this effect.  Likewise pressing <BS> will have the cursor try to
 reach the nearest soft tab stop.  The following example uses
 `:set softtabstop=4`

src/socketserver.c

@@ -698,7 +698,7 @@ socketserver_exec(channel_T *channel, dict_T *message)
 	    vim_free(result);
 	}
 	else
-	    // Error occured, return error message
+	    // Error occurred, return error message
 	    dict_add_string(dict, "str",
 		    (char_u *)_(e_invalid_expression_received));
 

src/spellfile.c

@@ -635,7 +635,7 @@ tree_count_words(char_u *byts, long byts_len, idx_T *idxs)
 		++wordcount[depth];
 
 		// Skip over any other NUL bytes (same word with different
-		// flags).  But don't go over the end
+		// flags).  But don't go over the end.
 		while (n + 1 < byts_len && byts[n + 1] == 0)
 		{
 		    ++n;
@@ -1650,7 +1650,7 @@ read_tree_node(
     idx_T	startidx,	    // current index in "byts" and "idxs"
     int		prefixtree,	    // TRUE for reading PREFIXTREE
     int		maxprefcondnr,	    // maximum for <prefcondnr>
-    int		depth)		    // recursiong level
+    int		depth)		    // recursion level
 {
     int		len;
     int		i;
@@ -5663,7 +5663,7 @@ sug_filltree(spellinfo_T *spin, slang_T *slang)
 		spin->si_blocks_cnt = 0;
 
 		// Skip over any other NUL bytes (same word with different
-		// flags).  But don't go over the end
+		// flags).  But don't go over the end.
 		while (n + 1 < slang->sl_fbyts_len && byts[n + 1] == 0)
 		{
 		    ++n;