docs: small fixes (#26154)

src/nvim/decoration.c

@@ -27,7 +27,7 @@
 #endif
 
 // TODO(bfredl): These should maybe be per-buffer, so that all resources
-// asssociated with a buffer can be freed when the buffer is unloaded.
+// associated with a buffer can be freed when the buffer is unloaded.
 kvec_t(DecorSignHighlight) decor_items = KV_INITIAL_VALUE;
 uint32_t decor_freelist = UINT32_MAX;
 

src/nvim/eval/funcs.c

@@ -7440,7 +7440,7 @@ static void f_setenv(typval_T *argvars, typval_T *rettv, EvalFuncData fptr)
   char valbuf[NUMBUFLEN];
   const char *name = tv_get_string_buf(&argvars[0], namebuf);
 
-  // seting an environment variable may be dangerous, e.g. you could
+  // setting an environment variable may be dangerous, e.g. you could
   // setenv GCONV_PATH=/tmp and then have iconv() unexpectedly call
   // a shell command using some shared library:
   if (check_secure()) {

src/nvim/lua/executor.c

@@ -115,7 +115,7 @@ lua_State *get_global_lstate(void)
 /// Convert lua error into a Vim error message
 ///
 /// @param  lstate  Lua interpreter state.
-/// @param[in]  msg  Message base, must contain one `%s`.
+/// @param[in]  msg  Message base, must contain one `%*s`.
 void nlua_error(lua_State *const lstate, const char *const msg)
   FUNC_ATTR_NONNULL_ALL
 {

src/nvim/marktree.h

@@ -48,7 +48,7 @@ typedef struct {
 } MarkTreeIter;
 
 #define marktree_itr_valid(itr) ((itr)->x != NULL)
-// accces raw key: flags in MT_FLAG_EXTERNAL_MASK and decor_data are safe to modify.
+// access raw key: flags in MT_FLAG_EXTERNAL_MASK and decor_data are safe to modify.
 #define mt_itr_rawkey(itr) ((itr)->x->key[(itr)->i])
 
 // Internal storage