emulator: Fixes for typos.

These are mechanical fixes by typos(1). All tests continue to pass and everything still builds.

Author: marete

google/cloud/bigtable/emulator/column_family.cc

@@ -88,8 +88,8 @@ std::vector<Cell> ColumnFamilyRow::DeleteColumn(
 }
 
 absl::optional<Cell> ColumnFamilyRow::DeleteTimeStamp(
-    std::string const& column_qulifier, std::chrono::milliseconds timestamp) {
-  auto column_it = columns_.find(column_qulifier);
+    std::string const& column_qualifier, std::chrono::milliseconds timestamp) {
+  auto column_it = columns_.find(column_qualifier);
   if (column_it == columns_.end()) {
     return absl::nullopt;
   }
@@ -155,14 +155,14 @@ std::vector<Cell> ColumnFamily::DeleteColumn(
 }
 
 absl::optional<Cell> ColumnFamily::DeleteTimeStamp(
-    std::string const& row_key, std::string const& column_qulifier,
+    std::string const& row_key, std::string const& column_qualifier,
     std::chrono::milliseconds timestamp) {
   auto row_it = rows_.find(row_key);
   if (row_it == rows_.end()) {
     return absl::nullopt;
   }
 
-  auto ret = row_it->second.DeleteTimeStamp(column_qulifier, timestamp);
+  auto ret = row_it->second.DeleteTimeStamp(column_qualifier, timestamp);
   if (!row_it->second.HasColumns()) {
     rows_.erase(row_it);
   }

google/cloud/bigtable/emulator/column_family.h

@@ -155,7 +155,7 @@ class ColumnFamilyRow {
    * @return Cell representing deleted cell, if there was a cell with
    *     that timestamp in then given column,  otherwise absl::nullopt.
    */
-  absl::optional<Cell> DeleteTimeStamp(std::string const& column_qulifier,
+  absl::optional<Cell> DeleteTimeStamp(std::string const& column_qualifier,
                                        std::chrono::milliseconds timestamp);
 
   bool HasColumns() { return !columns_.empty(); }
@@ -268,7 +268,7 @@ class ColumnFamily {
    *     otherwise absl::nullopt.
    */
   absl::optional<Cell> DeleteTimeStamp(std::string const& row_key,
-                                       std::string const& column_qulifier,
+                                       std::string const& column_qualifier,
                                        std::chrono::milliseconds timestamp);
 
   const_iterator begin() const { return rows_.begin(); }

google/cloud/bigtable/emulator/rollback_test.cc

@@ -339,7 +339,7 @@ TEST(TransactonRollback, ZeroOrNegativeTimestampHandling) {
   status = SetCells(table, table_name, row_key_4, v);
   ASSERT_FALSE(status.ok());
 
-  // Test that a mutation with timestamp -1 suceeds and stores the
+  // Test that a mutation with timestamp -1 succeeds and stores the
   // system time.
   v.clear();
   v = {