Fix a handful of comment typos or misspellings

Signed-off-by: Dan McGee <dan@archlinux.org>

lib/libalpm/alpm.h

@@ -313,7 +313,7 @@ typedef enum _alpm_event_t {
 	ALPM_EVENT_LOAD_START,
 	/** Target package is finished loading. */
 	ALPM_EVENT_LOAD_DONE,
-	/** Target deltas's integrity will be checked. */
+	/** Target delta's integrity will be checked. */
 	ALPM_EVENT_DELTA_INTEGRITY_START,
 	/** Target delta's integrity was checked. */
 	ALPM_EVENT_DELTA_INTEGRITY_DONE,
@@ -881,7 +881,7 @@ alpm_list_t *alpm_pkg_get_backup(alpm_pkg_t *pkg);
  */
 alpm_db_t *alpm_pkg_get_db(alpm_pkg_t *pkg);
 
-/** Retuns the base64 encoded package signature.
+/** Returns the base64 encoded package signature.
  * @param pkg a pointer to package
  * @return a reference to an internal string
  */
@@ -1032,7 +1032,7 @@ int alpm_trans_prepare(alpm_handle_t *handle, alpm_list_t **data);
 /** Commit a transaction.
  * @param handle the context handle
  * @param data the address of an alpm_list where detailed description
- * of an error can be dumped (ie. list of conflicting files)
+ * of an error can be dumped (i.e. list of conflicting files)
  * @return 0 on success, -1 on error (pm_errno is set accordingly)
  */
 int alpm_trans_commit(alpm_handle_t *handle, alpm_list_t **data);

src/pacman/pacman.c

@@ -726,7 +726,9 @@ static int parseargs(int argc, char *argv[])
 	return 0;
 }
 
-/** print commandline to logfile
+/** Print command line to logfile.
+ * @param argc
+ * @param argv
  */
 static void cl_to_log(int argc, char* argv[])
 {
@@ -754,8 +756,8 @@ static void cl_to_log(int argc, char* argv[])
 }
 
 /** Main function.
- * @param argc argc
- * @param argv argv
+ * @param argc
+ * @param argv
  * @return A return code indicating success, failure, etc.
  */
 int main(int argc, char *argv[])
@@ -914,7 +916,7 @@ int main(int argc, char *argv[])
 		list_display("Targets   :", pm_targets);
 	}
 
-	/* Log commandline */
+	/* Log command line */
 	if(needs_root()) {
 		cl_to_log(argc, argv);
 	}

src/pacman/util.c

@@ -1005,7 +1005,7 @@ static double simple_pow(int base, int exp)
  * @param target_unit '\0' or a short label. If equal to one of the short unit
  * labels ('B', 'K', ...) bytes is converted to target_unit; if '\0', the first
  * unit which will bring the value to below a threshold of 2048 will be chosen.
- * @param precision number of decimal places, ensures -0.0.0 gets rounded to
+ * @param precision number of decimal places, ensures -0.00 gets rounded to
  * 0.00; -1 if no rounding desired
  * @param label will be set to the appropriate unit label
  *